premise: A female dancer in black spandex flies through the air.
hypothesis: a dancer is in black spandex.
explanation_1: The two sentences are related only in what is being presented. The second sentence is just duplicate of the first  only with less detail and without any action taking place. From the second sentence, we can no longer know the gender or actions of the dancer in black spandex.
premise_logic: exists e1 s1 s2 x1 x2 x3.(n_air(x3) & through(e1,x3) & Actor(e1,x1) & v_fly(e1) & in(x1,x2) & n_spandex(x2) & a_black(s2) & Theme(s2,x2) & n_dancer(x1) & a_female(s1) & Theme(s1,x1))
hypothesis_logic: exists p1 x1.(exists s1 x2.(in(x1,x2) & n_spandex(x2) & a_black(s1) & Theme(s1,x2)) & n_dancer(x1))
premise_sim: exists e1 s1 s2 x1 x2 x3.(v_fly(e1) & through(e1,x3) & n_spandex(x2) & n_dancer(x1) & n_air(x3) & in(x1,x2) & a_female(s1) & a_black(s2) & Theme(s2,x2) & Theme(s1,x1) & Actor(e1,x1))
hypothesis_sim: exists x1.(n_dancer(x1) & exists s1 x2.(n_spandex(x2) & in(x1,x2) & a_black(s1) & Theme(s1,x2)))