A group of people sitting outside on a sunny day.
There are people outside.
A group of people sitting outside are people outside.
exists e1 s1 s2 x1 x2 x3 x4.(a_topic(x1) & of(x1,x2) & on(e1,x4) & n_day(x4) & a_sunny(s2) & Theme(s2,x4) & a_outside(s1) & Manner(e1,s1) & Actor(e1,x3) & v_sit(e1) & (x2 = x3) & n_people(x2) & n_group(x1))
exists p1 s1 x1.(a_outside(s1) & Manner(p1,s1) & exists x2.((x1 = x2) & n_people(x2)))