Young adults talking under a tree on a sunny day.
The sun is shining.
A sunny day implies sun is shining.
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(x1) & on(e1,x4) & n_day(x4) & a_sunny(s2) & Theme(s2,x4) & under(e1,x3) & n_tree(x3) & Actor(e1,x2) & v_talk(e1) & (x1 = x2) & n_adult(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1.(n_sun(x1) & Actor(e1,x1) & v_shine(e1))