A singer entertaining the crowd.
A poet sits quietly under a tree.
A singer is not a poet, also they cannot be entertaining when they sits quietly
exists e1 x1 x2 x3.(n_crowd(x3) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_entertain(e1) & (x1 = x2) & n_singer(x1))
exists e1 s1 x1 x2.(under(e1,x2) & n_tree(x2) & a_quietly(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1) & n_poet(x1))