Assertion: wildebeest's hair | /r/HasProperty | erected
Facets:
value: during a special form of jumping
type: TEMPORAL
Source sentences:
text: Although closely related to true gazelles (genus Gazella), the springbok is placed in a separate genus because of a unique structure on its back that it displays when excited, consisting of a patch of white hair that is normally hidden beneath a skin fold but is erected during a special form of jumping known as pronking.