PTB
type: Media Type
type: Named individual
type: Concept
type: Data format
broader: Annotation format
narrower: PTB-chunked
narrower: PTB-combined
definition: Penn Tree Bank formats
in scheme: Data Format Taxonomy

PTB-combined
type: Data format
type: Media Type
type: Named individual
type: Concept
broader: PTB

Annotation format
type: Data format
type: Media Type
type: Named individual
type: Concept
narrower: PTB

Media Type
type: Class

Named individual
type: Class

Data format
type: Class

Data Format Taxonomy
type: Named individual
type: ConceptScheme

PTB-chunked
type: Data format
type: Media Type
type: Named individual
type: Concept
broader: PTB