# Lexical Index A datamodel for representing a lexical index of an ontology. A lexical index is keyed by optionally normalized terms. URI: https://w3id.org/oak/lexical-index Name: lexical-index ## Classes | Class | Description | | --- | --- | | [Activity](Activity.md) | Generic grouping for any lexical operation | |         [LexicalTransformation](LexicalTransformation.md) | An atomic lexical transformation applied on a term (string) yielding a transformed string | |         [LexicalTransformationPipeline](LexicalTransformationPipeline.md) | A collection of atomic lexical transformations that are applied in serial fashion | | [Any](Any.md) | None | | [LexicalGrouping](LexicalGrouping.md) | A grouping of ontology elements by a shared lexical term | | [LexicalIndex](LexicalIndex.md) | An index over an ontology keyed by lexical unit | | [RelationshipToTerm](RelationshipToTerm.md) | A relationship of an ontology element to a lexical term | ## Slots | Slot | Description | | --- | --- | | [element](element.md) | | | [element_term](element_term.md) | the original term used in the element | | [groupings](groupings.md) | all groupings | | [name](name.md) | | | [params](params.md) | Any parameters to be applied to the transformation algorithm | | [pipeline](pipeline.md) | | | [pipelines](pipelines.md) | all pipelines used to build the index | | [predicate](predicate.md) | | | [relationships](relationships.md) | All ontology elements grouped and their relationship to the normalized term | | [source](source.md) | | | [synonymized](synonymized.md) | | | [term](term.md) | A normalized term that groups ontology elements | | [transformations](transformations.md) | | | [type](type.md) | The type of transformation | ## Enumerations | Enumeration | Description | | --- | --- | | [TransformationType](TransformationType.md) | A controlled datamodels of the types of transformation that can be applied to | ## Types | Type | Description | | --- | --- | | [Boolean](Boolean.md) | A binary (true or false) value | | [Curie](Curie.md) | a compact URI | | [Date](Date.md) | a date (year, month and day) in an idealized calendar | | [DateOrDatetime](DateOrDatetime.md) | Either a date or a datetime | | [Datetime](Datetime.md) | The combination of a date and time | | [Decimal](Decimal.md) | A real number with arbitrary precision that conforms to the xsd:decimal speci... | | [Double](Double.md) | A real number that conforms to the xsd:double specification | | [Float](Float.md) | A real number that conforms to the xsd:float specification | | [Integer](Integer.md) | An integer | | [Jsonpath](Jsonpath.md) | A string encoding a JSON Path | | [Jsonpointer](Jsonpointer.md) | A string encoding a JSON Pointer | | [Ncname](Ncname.md) | Prefix part of CURIE | | [Nodeidentifier](Nodeidentifier.md) | A URI, CURIE or BNODE that represents a node in a model | | [Objectidentifier](Objectidentifier.md) | A URI or CURIE that represents an object in the model | | [Sparqlpath](Sparqlpath.md) | A string encoding a SPARQL Property Path | | [String](String.md) | A character string | | [Time](Time.md) | A time object represents a (local) time of day, independent of any particular... | | [Uri](Uri.md) | a complete URI | | [Uriorcurie](Uriorcurie.md) | a URI or a CURIE | ## Subsets | Subset | Description | | --- | --- |