1.
Liang:   The teacher wants us to
         make special binders to
         study after school is finished.
Octavio: Yes, I know. We have to go to
         the store and buy some things.
         I don't think it will be expensive.
Liang:   We need binders first.
Octavio: What size do we need?
Liang:   I think we need one and a
         half-inch binders.
Octavio: That sounds right. They
         shouldn't be too big.

2.
Liang:   We need dividers, too.
Octavio: What are dividers?
Liang:   You know, the heavy paper to
         make sections in your binder.
Octavio: Oh, yeah. How many do we need?
Liang:   We need a set of five dividers.

3.
Octavio: What else do we need?
Liang:   We need paper for each section.
Octavio: How many sheets do we need?
Liang:   Two hundred sheets, I think.
Octavio: That sounds right.