1.	Accessor - accessor functions (F&O 2)
2.	AttrConstruct - xsl:attribute (XSLT 11.3)
3.	AttribSet - attribute sets (XSLT 10.2)
4.	AttribValTemplate - Attribute Value Templates (XSLT 5.5)
5.	Axes - path expressions that mainly concern axes from the "Full Axis" set (XPath/XQuery 3.2.1.1, 3.2.3, 3.2.4, XQuery 2.6.3)
6.	AxesQ - uses only axes required for XPath AND XQuery (XQuery 3.2.1.1, 3.2.3, 3.2.4)
7.	BinaryType - constructors & functions on base64Binary and hexBinary types (F&O 5.1, 12)
8.	Boolean - boolean values, functions, operators, and logical expressions (F&O 8, XPath/XQuery 3.6)
9.	BooleanBC - boolean handling in Backward Compatibility Mode
10.	BuiltinInstance - instance-of tests for built-in types and "as" attribute in xsl:template (XPath 3.10.1, XQuery 3.12.1, XSLT 3.12)
11.	BuiltInRules - built-In template rules (XSLT 6.6)
12.	BuiltinStaticTypingErr - error tests for Static Typing module when Schema Import module/feature is absent (XPath 2.2.3.1, 2.6, XQuery 2.2.3.1, 2.6.2)
13.	BuiltinTypeCast - cast as, castable as, and treat as for build-in types (F&O 17, XPath 3.10.2, 3.10.3, 3.10.5, XQuery 3.12.3, 3.12.4, 3.12.6) 
14.	BuiltinTyping - constructors and validation for built-in types and creating new nodes with types(F&O 5.1, XPath 3.10.4, XQuery 3.12.5, XSLT 3.12, 11.1.1, 11.2.1, 11.3.1, 19.2)
15.	Collation - functions requiring collation and fn:default-collation (F&O 7.3, 7.4, 15, 16.6)
16.	CollationQ - sort requiring collation (XQuery 4.11)
17.	Compare - comparison expressions (XPath/XQuery 3.5)
18.	CompareFunc - fn:deep-equal (F&O 15.2.1) - type-specific compare operators go into group for that type
19.	Conditional - xsl:if and xsl:choose (XSLT 8)
20.	ConflictRes - template conflict resolution (XSLT 6.4)
21.	Copy - copy instructions (XSLT 11.8)
22.	DateTimeFormat - DateTime formatting (XSLT 16.5)
23.	DateTimeFunc - functions on time-oriented types (F&O 9.4, 9.6, 9.7, 16.3-5, 16.7)
24.	DateTimeType - DateTime constructors and operators (F&O 5.1, 9.1-3, 9.5, 9.7)
25.	Docs - document(), doc(), unparsed-text() etc. (F&O 15.4.4, XSLT 16.1, 16.2)
26.	ElemConstruct - xsl:element (XSLT 11.2)
27.	Embed - simplified and embedded stylesheet modules (XSLT 3.7, 3.11)
28.	EntityFunc - entity functions (XSLT 16.6.2, 16.6.3)
29.	ErrorFunc - error functions (F&O 3)
30.	ExtensionsQ - pragmas and must-understand extensions (XQuery 2.6.4-5)
31.	ExtFunc - extension functions (XSLT 18.1)
32.	ExtInstruction - element-available and xsl:fallback (XSLT 18.2)
33.	FLWORQ - FLWOR expressions, including unordered (XQuery 3.8, 3.9)
34.	ForExpr - XPath version, reduced from FLWOR (XPath 3.7)
35.	FunctionUD - stylesheet-defined function, function-available() (XSLT 10.3)
36.	FunctionUDQ - function definition (XQuery 4.12)
37.	Grouping - grouping (XSLT 14)
38.	IDref - IDs, IDREFs, etc. (F&O 15.4.2, 15.4.3, XSLT 16.6.4)
39.	IfExpr - conditional expressions (XPath 3.8, XQuery 3.10)
40.	ImpIncl - import and include (XSLT 3.10)
41.	Key - keys (XSLT 16.3)
42.	Lexical - disambiguation rules and similar grammar details (XPath/XQuery Appendix A)
43.	LRE - literal result elements (XSLT 11.1)
44.	Match - match patterns in xsl:template(XSLT 5.4, 6.1, 6.2)
45.	Math - numeric expressions, mainly operators (XPath/XQuery 3.4, F&O 6.2, 6.3, 6.4)
46.	Message - xsl:message (XSLT 17)
47.	Modes - template modes (XSLT 6.5)
48.	ModuleQ - module declaration, import, base-uri, and version (XQuery 4.1, 4.2, 4.3, 4.7) 
49.	MultResult - multiple output destinations (XSLT 19.1)
50.	NamedTemplate - calling templates by name (XSLT 10.1)
51.	Namespace - creation or use of namespace nodes, reserved namespace, and xpath-default-namespace (XSLT 3.2, 5.2, 11.6)
52.	NamespaceQ - namespace declarations in query(XQuery 4.4, 4.5)
53.	NameURI - data types and functions related to QNames, namespaces, URIs (F&O 10, 11, 14.1.1-3)
54.	NodeConstruct - text, processing-instruction, comment, root nodes (XSLT 11.4, 11.5, 11.7)
55.	NodeTest - path expressions that focus on node tests (XPath/XQuery 3.2.1.2, F&O 14.1.6-9)
56.	NoSchemaErrQ - errors required when Schema Import module/feature is absent (XQuery 2.6.1)
57.	Notation - functions and operators on NOTATION (F&O 13)
58.	NumberFormat - formatting numbers (XSLT 16.4)
59.	Numbering - xsl:number (XSLT 12)
60.	NumFunc - numeric functions, but not operators (F&O 14.1.4)
61.	NumType - constructors, variables, and operators of all numeric types (F&O 5.1, 6.1)
62.	NumberBC - number handling in Backward Compatibility Mode
63.	Output - xsl:output, character-map, CDATA sections, etc. (XSLT 2.6, 4.5, 20)
64.	Override - apply-imports and next-match (XSLT 6.7)
65.	Position - expressions using count(), position() and last() (F&O 15.3.1, 16.2, 16.1)
66.	Predicate - path expressions using predicates, other than positional (XPath/XQuery 3.2.2)
67.	QuantExpr - quantified expressions (XPath 3.9, XQuery 3.11)
68.	RegEx - xsl:analyze-string (XSLT 15)
69.	RegExFunc - functions involving regular expressions (F&O 7.6)
70.	RelURI - relative URIs and file-opening (discretionary item)
71.	SchemaInstance - instance-of tests for any types using an imported schema and some "as" attribute in XSLT (XPath 3.10.1, XQuery 3.12.1, XSLT 3.13)
72.	SchemaStaticTypingErr -  error tests for Static Typing module when Schema Import module/feature is present (XPath 2.2.3.1, 2.6, XQuery 2.2.3.1, 2.6.2)
73.	SchemaTypeCast - "as" attribute in xsl:key, cast as, castable as, and treat as for any types using an imported schema (F&O 17, XPath 3.10.2, 3.10.3, 3.10.5, XQuery 3.12.3, 3.12.4, 3.12.6, XSLT 16.3.1) 
74.	SchemaTyping - constructors and validation for any types using an imported schema and creating new nodes with types (F&O 5.2, XPath 3.10.4, XQuery 3.12.5, XSLT 3.13, 11.1.1, 11.2.1, 11.3.1) 
75.	SchemaTypingQ - handling data types with Schema Import module (XQuery 4.6)
76.	Select - select expressions for xsl:apply-templates, xsl:for-each, and xsl:value-of including the current function (XSLT 5.3, 6.3, 7, 11.4.3, 16.6.1)
77.	SeqConstruct - sequence construction, operators, xsl:sequence, and range exprs (XPath/XQuery 3.3.1, F&O 15.1.5, 15.2.2-4, 15.4.1, XSLT 11.9)
78.	SeqFunc - functions on sequences (F&O 15.1.1-4, 15.1.6-14, 15.3.1-5, 15.4.5)
79.	SetOp - union, intersect, except (XPath/XQuery 3.3.2)
80.	Sort - xsl:sort and related (XSLT 13)
81.	StringFunc - string functions not elsewhere (F&O 7.2.1-2, 7.3.2, 7.4, 7.5, 14.1.5)
82.	StringType - constructors of all string types (F&O 5.1, 7.1)
83.	SwitchExprQ - type switch expressions (XQuery 3.12.2)
84.	SystemProp - system properties (XSLT 16.6.5)
85.	TraceFunc - trace function (F&O 4)
86.	TunnelParam – tunnel parameters (XSLT 10.1.2)
87.	ValidationQ - validate expressions and validation declaration (XQuery 3.13, 4.9)
88.	VariableDefQ - variable definition (XQuery 4.8)
89.	VariableParam - xsl:variable and xsl:param (XSLT 9)
90.	WhiteSpace - whitespace stripping (XSLT 4.2, 4.3)
91.	XMLConstructQ - XML constructors (XQuery 3.7)
92.	XMLSpaceQ - xmlspace declaration (XQuery 4.10)
93.	XSLTVersion - forward and backward compatibility (XSLT 3.8, 3.9)


according to specs:
XPATH http://www.w3.org/TR/2003/WD-xpath20-20031112/ 
XQuery http://www.w3.org/TR/2003/WD-xquery-20031112/
XSLT http://www.w3.org/TR/2003/WD-xslt20-20031112/
F&O http://www.w3.org/TR/2003/WD-xpath-functions-20031112/