premise: A man in a white shirt speaks into a microphone as other men gather behind him at a public event.
hypothesis: A man in a white shirt is making a speech in front of a crowd.
explanation_1: A man in the crowd  speaks loudly in to a microphone at a public event.
explanation_2: If the man speaks into a microphone before a crowd, it stands to reason the man is making a speech.
explanation_3: A man in white shirt is making  a speech in front of a crowd in a public event
premise_logic: exists e1 p1 s1 x1 x2 x3.(exists e2 s2 x4 x5.(at(e2,x5) & n_event(x5) & a_public(s2) & Theme(s2,x5) & behind(e2,x1) & Actor(e2,x4) & v_gather(e2) & -(x4 = x1) & n_man(x4)) & n_male(x1) & n_man(x1) & n_man(x1) & as(e1,p1) & into(e1,x3) & n_microphone(x3) & Actor(e1,x1) & v_speak(e1) & in(x1,x2) & n_shirt(x2) & a_white(s1) & Theme(s1,x2))
hypothesis_logic: exists e1 s1 x1 x2 x3 x4 x5.(in(e1,x4) & of(x4,x5) & n_crowd(x5) & n_front(x4) & Theme(e1,x3) & Actor(e1,x1) & v_make(e1) & n_speech(x3) & in(x1,x2) & n_shirt(x2) & a_white(s1) & Theme(s1,x2) & n_man(x1))