There are three blocks. Lets call them A, B and C. Block A is above block B and it is below block C. Block A contains one medium black square. Block B contains two medium black squares. A medium blue square is below medium black square number one , a medium yellow square and medium black square number two. Below medium black square number two is the medium yellow square. Below medium black square number two there is medium black square number one. Block C has two medium yellow squares. Medium yellow square number one is below medium yellow square number two.
Which object is below a medium black square? medium yellow square number one or the medium yellow square which is in block B?
medium yellow square  number one the medium yellow square  which is in block B both of them none of them