a skater grinding down a rail in front of a latin store while three onlookers watch.
A skater is doing a trick on a rail in front of three bystanders.
skater grinding down a rail simply means skater is doing a trick on a rail
exists e2 e1 s1 x1 x2 x3 x4 x5 x6 x7 x8.(a_topic(x1) & Theme(e2,x8) & Actor(e2,e1) & v_watch(e2) & (x1 = x8) & while(e1,x7) & n_onlooker(x7) & card_eq_3(x7) & a_down(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_grind(e1) & in(x3,x4) & of(x4,x5) & n_store(x5) & of(x5,x6) & n_latin(x6) & n_front(x4) & n_rail(x3) & n_thing(x2) & n_skater(x1))
exists e1 x1 x2 x3 x4 x5.(in(e1,x4) & of(x4,x5) & n_bystander(x5) & card_eq_3(x5) & n_front(x4) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & on(x2,x3) & n_rail(x3) & n_trick(x2) & n_skater(x1))