the question itself says that it is REGULAR (BOUNDED) i.e u,v are bounded with lenght '2' ,BUT they are not infinate in lenght
and more over to figure out this is CFL or not, simlpy look at the V W VR ,
if V VR is present then it would be an NCFL,BUT its in the form of V W VR where W is of 2 lenght string which separates