premise: Elizabeth Jane Watson (December 28, 1921 – February 21, 2016) was an American actress and singer known for her roles in musical theatre, especially Laurey in "Oklahoma!", creating the role in the London premiere. She also performed in nightclubs and on television, including as co-host of the game show "Winner Take All".
hypothesis: Watson was not the only host of Winner Take All.
reason: The information was only about Watson and the system was unaware that "co-host" meant she hosted with another person.