A couple guys entering rowboats on a dock.
Two guys are stepping into some boats.
Two makes up a couple.  "Stepping into" is a rephrasing of "entering".
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & on(e1,x5) & n_dock(x5) & Theme(e1,x4) & Actor(e1,x3) & v_enter(e1) & n_rowboat(x4) & (x1 = x3) & n_guy(x1) & of(x1,x2) & n_couple(x2))
exists e1 x1 x2.(into(e1,x2) & n_boat(x2) & Actor(e1,x1) & v_step(e1) & n_guy(x1) & card_eq_2(x1))