Premise: Guinevere ( [ ˈɡwɪnᵻvɪər ] Gwenhwyfar Gwenivar ) , often written as Guenevere or Gwenevere , is , in Arthurian legend , the wife of King Arthur . She is also found in medieval Welsh prose , in the mid-late 12th-century tale Culhwch and Olwen , as Arthur 's wife Gwenhwyfar .
Hypothesis: Guinevere was Arthur's spouse.
Label: ENTAILMENT