Three statements are given followed by three conclusions numbered 1, 2 and 3. Assuming the statements to be true, even if they seem to be at variance with commonly known facts, decide which of the conclusions logically follow(s) from the statements.

Statements:
Some shoes are slippers.
Some slippers are socks.
All socks are sandals.

Conclusions:
1. Some sandals are shoes.
2. Some sandals are slippers.
3. Some socks are shoes.