premise: Mountain biking in a forest during the early fall.
hypothesis: Bicycling through the woods while the leaves are falling.
explanation_1: Mountain biking and bicycling are the same activity, and early fall is when leaves are falling, and forest and woods are the same.
explanation_2: Answer: Mountain biking refers to bicycling and woods is the same as the forest.
explanation_3: Bicycling is a rephrasing of mountain biking, a forest is a synonym of woods, and for leaves to be falling it only occurs in early fall.
premise_logic: exists s1 x1 x2 x3 x4.(n_fall(x4) & a_early(s1) & Theme(s1,x4) & a_topic(x1) & during(x1,x4) & in(x1,x3) & n_forest(x3) & n_biking(x1) & (x1 = x2) & ne_nam_mountain(x2))
hypothesis_logic: exists e1 p1 x1 x2 x3.(n_leaf(x3) & n_wood(x2) & exists e2.(Actor(e2,x3) & v_fall(e2)) & while(e1,p1) & through(e1,x2) & Actor(e1,x1) & v_bicycle(e1) & n_thing(x1))