1. (8 points) Consider four context-free grammars which are each defined as Gi (S,T), 10, 1,2), Ri, S) for Ri the set of rules defined below, 1 sis4 (a) Fill in the blank in this derivation in the CFG G: (b) True or False: this is a leftmost derivation in the CFG G (c) List all of these CFGs which have the property that L(G') = 0? Write NONE if none of d) List all of these CFGs which have the property that L(G) is infinite? Write NONE if none (e) List all of these CFGs which have the property that 0122 E L(G)? Write NONE if none of these four CFGs have this property. of these four CFGs have this property these four CFGs have this property