Who is Sasha?

According to Ish, this is Sasha:

This (or any other book) is also Sasha:

This is not Sasha. This is "car" (he's pretty good with car - everything with wheels is "car")

This IS Sasha. Ish's best friend. He calls her all.the.time. He has even learned a new phrase: "Hi Sasha" - he says hi to her all day long. Sasha loves him too - although she refuses to share her yummy dog food with him (to Ish's disappointment).

Every boy should have such a friend.