A group of seven friends are jumping near the bank of a brown river.
A group of friends are jumping and having fun.
Not all groups of friends have seven people.  Not all friends jumping are having fun.
exists e1 s1 x1 x2 x3 x4.(n_bank(x3) & near(e1,x3) & of(x3,x4) & n_river(x4) & a_brown(s1) & Theme(s1,x4) & Actor(e1,x1) & v_jump(e1) & of(x1,x2) & n_friend(x2) & card_eq_7(x2) & n_group(x1))
exists e1 e2 x1 x2 x3 x4 x5.(Theme(e2,x5) & Actor(e2,x3) & v_have(e2) & n_fun(x5) & of(x3,x4) & n_friend(x4) & n_group(x3) & Actor(e1,x1) & v_jump(e1) & of(x1,x2) & n_friend(x2) & n_group(x1))