premise: People shopping at the marketplace.
hypothesis: People are shopping.
explanation_1: If people are at a marketplace then they must be shopping.
explanation_2: Marketplace implies shopping.
explanation_3: : People shopping at the marketplace is that People are shopping.
premise_logic: exists x1 x2 x3.(n_marketplace(x3) & a_topic(x1) & at(x1,x3) & n_shopping(x1) & of(x1,x2) & n_people(x2))
hypothesis_logic: exists p1 x1.(exists x2.((x1 = x2) & n_shop(x2)) & n_people(x1))