premise: A group of power workers at the site of a car crash.
hypothesis: The power workers are trying to restore power.
explanation_1: Power workers are sent out to many crash sites, not just to restore power.
explanation_2: The power workers do not have to be working on trying to restore power.
explanation_3: Power workers at site does not mean trying to restore power.
premise_logic: exists x1 x2 x3 x4 x5 x6.(n_site(x4) & a_topic(x1) & at(x1,x4) & of(x4,x5) & n_crash(x5) & of(x5,x6) & n_car(x6) & of(x1,x2) & n_worker(x2) & of(x2,x3) & n_power(x3) & n_group(x1))
hypothesis_logic: exists e1 p1 x1 x2.(n_worker(x1) & of(x1,x2) & n_power(x2) & Topic(e1,p1) & Actor(e1,x1) & v_try(e1) & exists e2 x3.(Theme(e2,x3) & Actor(e2,x1) & v_restore(e2) & n_power(x3)))