Three Girls Enjoying Ice Cream Joke

Teacher asks one question to his student.

Teacher: “Mark, can you ask my question?”

Mark: “I will try mam”

Teacher: “There are five little birds on the window, the hunter shot ones, how many birds are left?

Mark: “It’s nothing mam, because the others fly away”

Teacher: “You are wrong, the answer is four. But I like the way you think”

Then Mark let his teacher permission to ask one question, and his teacher allows him.

Mark: “There are three girls, they each have ice cream. First girl enjoying her ice cream by grasps the cone, second girl licked up her ice cream, the third straightly entering whole ice cream into her mouth. The question is which one of those three girls have married?”

Teacher: “Haaaaahhh!!! I can be sure, it must be the third girl which entering whole part of her ice cream to her mouth”

Mark: “You are exactly wrong mam, the right answer is ones has ring in her finger. But I like the way you think”

Teacher: ???