Assertion: mule's horse | /r/HasProperty | bred by the spanish
Facets:
value: in order to produce mules
type: PURPOSE
value: together
type: MANNER
value: sometime after the introduction
type: TEMPORAL
Source sentences:
text: Sometime after the introduction to these animals, donkeys and horses — specifically male donkeys (jacks) and female horses (mares) — were bred together by the Spanish in order to produce mules.