cup(y,up,y,y,side,y,ceramic)=true,
cup(y,up,n,y,n,   y,styrofoam)=true,
cup(y,up,n,y,n,   y,paper)=true,
cup(y,up,y,n,n,   y,styrofoam)=true,
cup(y,up,n,n,side,y,paper)=true,
cup(y,up,n,y,side,y,paper)=true