When we play this game with famous real/fictional people, this happens all the time. Sometimes there is even a three-way ambiguity. The character to guess is: Barbie.
"Is she older than 50?"
"Yes" (the concept)
"Have I ever talked to her?"
"Yes" (the doll)
"Is she an athlete?"
"Yes" (the character)
* Going around the circle, each player names a person and a category into which that person belongs (e.g. "William Shatner, no more actors")
* Without taking notes, the next person continues and so forth.
* If a player believes another player is in violation of any of the categories, they may formally issue a challenge. If the challenge is valid, that player is eliminated, otherwise the challenger loses one of their (2) allowed challenges.
The show works great because all 3 players are comedians and old friends, so they love to get ridiculous and varied with it.
Categories might be "No more people whose name fits iambic pentameter" or "No more people who any of us had a crush on" or "No more people who have probably used a microwave before".
Persons might be "Noah" or, as you mention, "Barbie". Resolving a challenge like "Well, how old is Barbie, really?" are solved sometimes through discussion or sometimes through a player promising to abide what Wikipedia says before the third, uninvolved player, looks it up.