We have three blocks, A, B and C. Block A is below B and block B is below C. Block A has two medium yellow squares. Below medium yellow square number two there is medium yellow square number one. Block B has three medium black squares. Medium black square number one is below medium black square number two and medium black square number three. Medium black square number two is below medium black square number three. Block C has one medium blue square.
Which object is above a medium yellow square? medium black square number two or medium black square number three?
medium black square  number two medium black square  number three both of them none of them