Two ladies walking with baby strollers.
Two ladies are walking baby strollers.
"Are walking " is a rephrasing of "walking with ".
exists e1 x1 x2 x3 x4.(a_topic(x1) & with(e1,x3) & n_stroller(x3) & of(x3,x4) & n_baby(x4) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_lady(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_stroller(x2) & of(x2,x3) & n_baby(x3) & n_lady(x1) & card_eq_2(x1))