premise: A person with a green backpack is riding a bike down the road.
hypothesis: There is a person with a green backpack.
explanation_1: "There" refers to a location, and the road is a location.
explanation_2: This is a reiteration of the statement about the person with a green backpack with less description about their actions.
explanation_3: There is a person with a green backpack is riding a bike down the road.
premise_logic: exists e1 s1 x1 x2 x3 x4.(n_road(x4) & down(e1,x4) & Theme(e1,x3) & Actor(e1,x1) & v_ride(e1) & n_bike(x3) & with(x1,x2) & n_backpack(x2) & a_green(s1) & Theme(s1,x2) & n_person(x1))
hypothesis_logic: exists p1 x1 s1 x2 x3.((x1 = x2) & with(x2,x3) & n_backpack(x3) & a_green(s1) & Theme(s1,x3) & n_person(x2))
premise_sim: exists e1 s1 x1 x2 x3 x4.(with(x1,x2) & v_ride(e1) & n_road(x4) & n_person(x1) & n_bike(x3) & n_backpack(x2) & down(e1,x4) & a_green(s1) & Theme(s1,x2) & Theme(e1,x3) & Actor(e1,x1))
hypothesis_sim: exists x1 s1 x2 x3.(with(x2,x3) & n_person(x2) & n_backpack(x3) & a_green(s1) & Theme(s1,x3) & (x1 = x2))