premise: Police officer with riot shield stands in front of crowd.
hypothesis: A police officer stands in front of a crowd.
explanation_1: With riot shields describes how a police officer stands in front of a crowd.
explanation_2: Police officer with riot shield can be inferred as a police officer.
explanation_3: The riot sheild is additional detail as to what the police officer is holding while in front of a crowd.
premise_logic: exists e1 x1 x2 x3 x4 x5 x6.(in(e1,x5) & of(x5,x6) & n_crowd(x6) & n_front(x5) & Actor(e1,x1) & v_stand(e1) & with(x1,x3) & n_shield(x3) & of(x3,x4) & n_riot(x4) & n_officer(x1) & (x1 = x2) & ne_nam_police(x2))
hypothesis_logic: exists e1 x1 x2 x3 x4.(in(e1,x3) & of(x3,x4) & n_crowd(x4) & n_front(x3) & Actor(e1,x1) & v_stand(e1) & n_officer(x1) & of(x1,x2) & n_police(x2))