Ontology
label: Classes and properties to describe space activities in Chronos Knowledge Base
comment: Generic classes and semantic properties
defines: relKeyword
defines: relConcept
defines: relAncestor
defines: relMission
defines: relEvent
defines: relTarget
defines: payload
defines: relatedMatch
defines: keyword
defines: webresource
defines: concept
defines: dbpediadoc
defines: launch
defines: mission
defines: event
defines: webpage
defines: group

relKeyword
type: ObjectProperty
pref label: is related to a keyword Concept
comment: subject-document is in a semantic relation with the object-keyword
domain: dbpediadoc
label: relKeyword
range: keyword

relConcept
type: ObjectProperty
pref label: relConcept
comment: a property that relate a web resource to its related concepts in the taxonomy. Preferred domains are celestial objects and web resources
label: relConcept

relAncestor
type: ObjectProperty
pref label: relAncestor
comment: a property that relate a chronos:concept to its ancestor in the taxonomy.
label: relAncestor

relMission
type: ObjectProperty
pref label: is related to a space mission or a space launch
label: relMission
comment: subject-document is historically or technically related to a space mission
domain: dbpediadoc
domain: webpage
domain: event
range: mission
range: launch

relEvent
type: ObjectProperty
pref label: is a document related to an event
label: relEvent
comment: subject-document is semantically related with an event or happening
domain: dbpediadoc
range: event

relTarget
type: ObjectProperty
pref label: is a document related to a celestial body named
label: relTarget
comment: subject-document is semantically related to a celestial body
domain: dbpediadoc
domain: launch
domain: mission
domain: webpage
range: Planet
range: Satellite
range: Asteroid
range: CelestialBody

payload
type: ObjectProperty
pref label: is a mission that carries the payload named
comment: subject-document is a mission or a launch carrying the object-document
label: payload
domain: launch
domain: mission
range: Detector

relatedMatch
type: ObjectProperty
pref label: is a DBpedia document with an high level of semantical relation with
label: relatedMatch
comment: a DBpedia document highly semantically related to another of the same kind
domain: dbpediadoc
range: dbpediadoc

keyword
type: Concept
label: keyword
pref label: NASA-STI keyword
comment: a keyword representing a Concept in the NASA-STI taxonomy

webresource
type: Class
label: webresource
pref label: A resource crawled from the web
comment: the resources crawled are dumped in the triples store

concept
type: Class
label: concept
pref label: a concept stored in taxonomy.projectchronos.eu/concepts/c
comment: other classes instances and webresources are linked to a concept in the taxonomy

dbpediadoc
type: Class
pref label: data taken from a DBpedia page
label: dbpediadoc
comment: a document representing a wikipedia page information

launch
type: Class
same as: GroundToOrbitVehicle.n3
label: launch
pref label: a space launch that took place in the past
comment: a document representing a space launch taken from wikipedia page

mission
type: Class
same as: SpaceMission
same as: Mx4rvt6oU5wpEbGdrcN5Y29ycA
pref label: a space mission
label: mission
comment: a document representing a space mission from Chronos legacy

event
type: Class
same as: Event.n3
label: event
pref label: an event or happening related with a space mission
comment: a document representing an event or happening from Chronos legacy

webpage
type: CreativeWork
pref label: a crawled webpage
label: webpage
comment: a document representing a webpage

group
pref label: can be queried as a member of this group
label: group
comment: a string assigning the document to a set or a Class in the datastore, useful for fast querying