问题3：你能举一些类似的例子来帮助理 解“语言”的作用吗？ PRIM={w∈{0，l}*|Number(w)is a prime}. SAT=ww is a code of a satisfiable formula in CNF). CLIQUE={x#w∈{0，l,#}*|x∈{0,1}*and w represents a graph that contains a clique of size Number(c)}. VCP={u#w∈{0，l,#}+|u∈{0，l}f and w represents a graph that contains a vertex cover of size Number(u).问题3：你能举一些类似的例子来帮助理 解“语言”的作用吗？