Timmy: Hey, Cindy, what are you looking at? Cindy: I am looking at the map of our school. Timmy: Where is our classroom? Cindy: Our classroom is on the third floor. We are in the first grade. Sam: How about the second grade? Cindy: Their classroom is on the fourth floor. Anna: Is the new computer lab on the sixth floor? Cindy: No, it's not. It's on the fifth floor.