premise: A group of people is sitting at a large table and using paint brushes to form characters on white paper.
hypothesis: The people are making a welcome home sign.
explanation_1: Sentence 1 does not specify what type of sign, a welcome home sign, is being made.
explanation_2: Just because a group of people is sitting at a large table and using paint brushes to form characters on white paper doesn't imply that they are making welcome home sign.
explanation_3: not all people using pain brushes are making a welcome home sign
premise_logic: exists e2 e1 p1 s1 x1 x2 x3 x4 x5 x6 x7.(Theme(e2,p1) & Recipient(e2,x6) & Actor(e2,x4) & v_use(e2) & exists e3 s2 x8 x9.(Theme(e3,x8) & Actor(e3,x4) & v_form(e3) & on(x8,x9) & n_paper(x9) & a_white(s2) & Theme(s2,x9) & n_character(x8)) & n_brush(x6) & of(x6,x7) & n_paint(x7) & of(x4,x5) & n_people(x5) & n_group(x4) & at(e1,x3) & n_table(x3) & a_large(s1) & Theme(s1,x3) & Actor(e1,x1) & v_sit(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
hypothesis_logic: exists e1 s1 x1 x2 x3.(n_people(x1) & Theme(e1,x2) & Actor(e1,x1) & v_make(e1) & n_sign(x2) & of(x2,x3) & n_home(x3) & a_welcome(s1) & Theme(s1,x2))