A group of swimmers are holding on to a rope at the beach
A group of swimmers are eating lunch.
Eating is not the same action as holding.
exists e1 x1 x2 x3 x4.(n_beach(x4) & at(e1,x4) & r_on(e1) & to(e1,x3) & n_rope(x3) & Actor(e1,x1) & v_hold(e1) & of(x1,x2) & n_swimmer(x2) & n_group(x1))
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_eat(e1) & n_lunch(x3) & of(x1,x2) & n_swimmer(x2) & n_group(x1))