In the question two statements are given, followed by two conclusions, I and II. You have to consider the statements to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.

Statement 1 : All bridges are bricks.
Statement 2 : No Stones are bridges.
Conclusion I : Some bricks are stones.
Conclusion II : Some stones are bridges.