A girl wearing a red tank top is sitting on a front porch.
A girl is sitting on a front porch waiting for her friends.
A girl sitting on a front porch waiting for her friends may not necessarily wearing a red tank top.
exists e2 e1 s1 s2 x1 x2 x3 x4 x5.(on(e2,x5) & n_porch(x5) & a_front(s2) & Theme(s2,x5) & Actor(e2,x1) & v_sit(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_top(x3) & of(x3,x4) & n_tank(x4) & a_red(s1) & Theme(s1,x3) & (x1 = x2) & n_girl(x1))
exists e2 e1 s1 x1 x2 x3.(for(e1,e2) & for(e2,x3) & n_friend(x3) & of(x3,x1) & n_female(x1) & Actor(e2,x1) & v_wait(e2) & on(e1,x2) & n_porch(x2) & a_front(s1) & Theme(s1,x2) & Actor(e1,x1) & v_sit(e1) & n_girl(x1))