premise: Several bicycles parked and a couple walking together.
hypothesis: A couple walks toward the bikes they will use to get to their picnic.
explanation_1: You can not infer they are using the bikes to get to the picnic.
explanation_2: We have no idea if they are going to a picnic, they could be going anywhere.
explanation_3: A couple walking together does not mean walking towards the bikes. A couple walking together do not always use bikes. A couple walking together does not imply they intend to picnic.
premise_logic: exists e1 e2 s1 s2 s3 x1 x2 x3 x4.(a_topic(s1) & subset_of(x3,s1) & a_together(s3) & Manner(e2,s3) & Actor(e2,x4) & v_walk(e2) & (x3 = x4) & n_couple(x3) & subset_of(x1,s1) & Theme(e1,x2) & v_park(e1) & (x1 = x2) & n_bicycle(x1) & a_several(s2) & Theme(s2,x1))
hypothesis_logic: exists e1 e2 p1 x1 x2 x3 x4.(n_picnic(x4) & of(x4,x2) & n_thing(x2) & n_thing(x2) & n_bike(x2) & toward(e1,x2) & Theme(e2,p1) & Recipient(e2,x3) & Actor(e2,x2) & v_use(e2) & exists e3.(to(e3,x4) & Actor(e3,x2) & v_get(e3)) & (x2 = x3) & Actor(e1,x1) & v_walk(e1) & n_couple(x1))