premise: A person rides his bicycle in the sand beside the ocean.
hypothesis: A person is on a beach.
explanation_1: A beach is the same as beside the ocean.
explanation_2: A person rides besides the ocean means is on a beach if there is sand beside the ocean.
explanation_3: Sand beside ocean is a beach.
premise_logic: exists e1 x1 x2 x3 x4.(n_ocean(x4) & n_sand(x3) & beside(e1,x4) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bicycle(x2) & of(x2,x1) & n_male(x1) & n_person(x1))
hypothesis_logic: exists p1 x1.(exists x2.(on(x1,x2) & n_beach(x2)) & n_person(x1))