We have two blocks, A and B. Block A is to the right of B. Block A contains a medium black square. Block B has two medium yellow squares and two other medium black squares. Medium yellow square number one is below medium black square number one , medium black square number two and medium yellow square number two. Below medium black square number two is medium black square number one. Below medium yellow square number two there is medium black square number two.
Which object is below a medium black square? medium black square number one or the medium black square which is in block A?
medium black square  number one the medium black square  which is in block A both of them none of them