Mary: I’m now in the sea. I can’t believe it! It’s so beautiful! What a colorful fish! It’s so lovely! Little fish, don’t go away! Oh, here comes a blue whale. Wow, it’s so big! It’s bigger than my classroom. Oh no! There is a shark! Help! Help!
    Helen: What’s the matter, Mary?
    Mary: I saw a shark. Its teeth are so big!
    Helen: Oh, it must be a dream.
    Mary: …Yes, it’s a dream.