Two girls drawing sailboats with chalk on the side of concrete.
Children are drawing with chalk.
Two girls are generally called children.
exists e1 x1 x2 x3 x4 x5 x6.(n_side(x5) & a_topic(x1) & with(e1,x4) & on(x4,x5) & of(x5,x6) & n_concrete(x6) & n_chalk(x4) & Theme(e1,x3) & Actor(e1,x2) & v_draw(e1) & n_sailboat(x3) & (x1 = x2) & n_girl(x1) & card_eq_2(x1))
exists e1 x1 x2.(with(e1,x2) & n_chalk(x2) & Actor(e1,x1) & v_draw(e1) & n_child(x1))