Alice: Good afternoon, Helen! Helen: Good afternoon, Alice! How are you? Alice: I'm fine, thanks. How are you? Helen: I'm OK. Alice: Helen, what' s this in English? Helen: It's a cup. And it's my cup. Alice: Oh, it' s red. I like the color. Is that a pencil? Helen: No, it' s a pen and it' s brown. Alice: Is it your pen? Helen: No, it s Bill's. My pen is green. The cup is   _
Alice' s Bill' s Gina' s Helen' s