Two construction workers wearing yellow rubber boots are sitting next to some pipes.
Two construction workers taking a break.
Construction workers do not have to be taking a break because they are sitting next to pipes.
exists e2 e1 s1 x1 x2 x3 x4 x5 x6.(to(e2,x6) & n_pipe(x6) & r_next(e2) & Actor(e2,x1) & v_sit(e2) & Theme(e1,x4) & Actor(e1,x3) & v_wear(e1) & n_boot(x4) & of(x4,x5) & n_rubber(x5) & a_yellow(s1) & Theme(s1,x4) & (x1 = x3) & n_worker(x1) & of(x1,x2) & n_construction(x2) & card_eq_2(x1))
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_take(e1) & n_break(x3) & n_worker(x1) & of(x1,x2) & n_construction(x2) & card_eq_2(x1))