Two bikers take a break on a bench.
The bikers are riding their bikes.
The bikers can't be riding their bikes at the same time as they take a break.
exists e1 x1 x2 x3.(on(e1,x3) & n_bench(x3) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_break(x2) & n_biker(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_bike(x2) & of(x2,x1) & n_thing(x1) & n_biker(x1) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1))