premise: these two ladies are reading a sign while shading themselves from the sun with their umbrellas.
hypothesis: Two ladies out in the daytime
explanation_1: If the two ladies are shading themselves from the sun then they are out in the daytime.
explanation_2: The sun appears in the daytime, thus it must be daytime.
explanation_3: Two ladies shading themselves in the presence of sun implies that it is daytime.
premise_logic: exists e1 e2 x1 x2 x3 x4 x5.(n_umbrella(x5) & of(x5,x4) & n_thing(x4) & n_sun(x4) & n_group(x3) & n_lady(x1) & card_eq_2(x1) & while(e1,e2) & from(e2,x4) & with(x4,x5) & Theme(e2,x3) & Actor(e2,x1) & v_shade(e2) & Theme(e1,x2) & Actor(e1,x1) & v_read(e1) & n_sign(x2))
hypothesis_logic: exists x1 x2 x3.(n_daytime(x3) & a_topic(x1) & in(x2,x3) & out(x1,x2) & n_thing(x2) & n_lady(x1) & card_eq_2(x1))