The teenage boy and girl are smiling under a red flower.
The teenage couple are holding hands and walking down the street.
THEY ARE EITHER SMILING OR HOLDING HAND AND WALKING
exists e1 s1 x1 x2 x3 x4 x5.(n_girl(x3) & n_boy(x2) & of(x2,x4) & n_teenage(x4) & subset_of(x3,x1) & subset_of(x2,x1) & under(e1,x5) & n_flower(x5) & a_red(s1) & Theme(s1,x5) & Actor(e1,x1) & v_smile(e1))
exists e2 e1 s1 x1 x2 x3 x4 x5.(n_street(x5) & n_couple(x1) & of(x1,x4) & n_teenage(x4) & of(x1,x2) & n_teenage(x2) & a_down(s1) & Manner(e2,s1) & Theme(e2,x5) & Actor(e2,x1) & v_walk(e2) & Theme(e1,x3) & Actor(e1,x1) & v_hold(e1) & n_hand(x3))