Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.

Statements:
All bean bags are chairs.
All chairs are couches.
All couches are sofas.

Conclusions:
I. Some sofas are couches.
II. Some couches are bean bags.
III. All couches are bean bags.