A large crowd of people walk, casually, across an elevated road or bridge.
The people are sitting and watching the stars.
People can't walk and sit at the same time.
exists e1 s1 s2 s3 x1 x2 x3.(across(e1,x3) & (n_road(x3) | n_bridge(x3)) & a_elevated(s3) & Theme(s3,x3) & a_casually(s2) & Manner(e1,s2) & Actor(e1,x1) & v_walk(e1) & of(x1,x2) & n_people(x2) & n_crowd(x1) & a_large(s1) & Theme(s1,x1))
exists e2 e1 x1 x2.(n_star(x2) & n_people(x1) & Theme(e2,x2) & Actor(e2,x1) & v_watch(e2) & Actor(e1,x1) & v_sit(e1))