premise: A skilled calligrapher is working at his art.
hypothesis: a skilled calligrapher is working
explanation_1: "A skilled calligrapher is working at his art." is a rephrasing of "a skilled calligrapher is working"
explanation_2: If the calligrapher is working, the calligrapher is most likely working his art.
explanation_3: Calligrapher is working at his art is a rephrasing of calligrapher is working.
premise_logic: exists e1 s1 x1 x2.(at(e1,x2) & n_art(x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_work(e1) & n_calligrapher(x1) & a_skilled(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 s1 x1.(Actor(e1,x1) & v_work(e1) & n_calligrapher(x1) & a_skilled(s1) & Theme(s1,x1))
premise_sim: exists e1 s1 x1 x2.(v_work(e1) & of(x2,x1) & n_male(x1) & n_calligrapher(x1) & n_art(x2) & at(e1,x2) & a_skilled(s1) & Theme(s1,x1) & Actor(e1,x1))
hypothesis_sim: exists e1 s1 x1.(v_work(e1) & n_calligrapher(x1) & a_skilled(s1) & Theme(s1,x1) & Actor(e1,x1))