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: Some jars are pistons. Some pistons are bullocks. All the bullocks are combs. Conclusions:
I. Some combs are pistons.
II. Some bullocks are jars.
III. No bullock is a jar.
IV. Some pistons are jars.