A group of parents and children strapped in safety helmets ride their bikes down a path.
A family goes swimming together.
People are either swimming or they ride their bikes but not both at the same time.
exists e1 e2 x1 x2 x3 x4 x5 x6 x7 x8 x9.(down(e2,x9) & n_path(x9) & Theme(e2,x8) & Actor(e2,x1) & v_ride(e2) & n_bike(x8) & of(x8,x1) & n_thing(x1) & in(e1,x6) & n_helmet(x6) & of(x6,x7) & n_safety(x7) & Theme(e1,x5) & v_strap(e1) & (x1 = x5) & of(x1,x2) & n_child(x4) & n_parent(x3) & subset_of(x4,x2) & subset_of(x3,x2) & n_group(x1))
exists e1 s1 x1 x2.(a_together(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_go(e1) & n_swimming(x2) & n_family(x1))