Two boys are walking along the stage whilst being watched by several people.
Two boys walk on a stage.
two boys walking along stage implies two boys walking on stage
exists e1 e2 s1 x1 x2 x3 x4 x5.(n_whilst(x2) & of(x2,x3) & n_stage(x3) & along(e1,x2) & Actor(e2,x5) & n_people(x5) & a_several(s1) & Theme(s1,x5) & Theme(e2,x4) & v_watch(e2) & (x2 = x4) & Actor(e1,x1) & v_walk(e1) & n_boy(x1) & card_eq_2(x1))
exists e1 x1 x2.(on(e1,x2) & n_stage(x2) & Actor(e1,x1) & v_walk(e1) & n_boy(x1) & card_eq_2(x1))