A group of people are firing up a hot air balloon.
A group of people prepare a hot air balloon.
Both sentences has a group of people about to use a hot air balloon
exists e1 s1 s2 x1 x2 x3 x4.(a_up(s2) & Manner(e1,s2) & Theme(e1,x3) & Actor(e1,x1) & v_fire(e1) & n_balloon(x3) & of(x3,x4) & n_air(x4) & a_hot(s1) & Theme(s1,x3) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 s1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_prepare(e1) & n_balloon(x3) & of(x3,x4) & n_air(x4) & a_hot(s1) & Theme(s1,x3) & of(x1,x2) & n_people(x2) & n_group(x1))