A line forms outside a mobile sharping truck with various items in hand.
People are waiting.
When a line forms it is a given that waiting is involved.
exists s1 s2 x1 x2 x3 x4 x5 x6.(a_topic(x1) & outside(x1,x3) & with(x3,x5) & in(x5,x6) & n_hand(x6) & n_item(x5) & a_various(s2) & Theme(s2,x5) & n_truck(x3) & of(x3,x4) & n_sharping(x4) & a_mobile(s1) & Theme(s1,x3) & n_form(x1) & of(x1,x2) & n_line(x2))
exists e1 x1.(Actor(e1,x1) & v_wait(e1) & n_people(x1))