Assertion: stallion's mare | /r/CapableOf | give birth to twin foals
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Source sentences:
text: Bó Cuailnge narrates the myth of Macha, a tri-functional equine goddess who, forced to run in a chariot race while she is pregnant, dies bringing forth twins or who, in another avatar, brings forth a son at the very moment when a mare in the stable gives birth to twin foals (Kinsella, 1970; Gricourt, 1954).