premise: A young boy reaches for and touches the propeller of a vintage aircraft.
hypothesis: A young boy and an airplane.
explanation_1: For the young boy to touch the propeller of a vintage aircraft both young boy and an airplane should be available.
explanation_2: A young boy touched a vintage aircraft, which is also known as an airplane.
explanation_3: young boy reaches for and touches the propeller of a vintage aircraft means that there is an young boy and an airplane.
premise_logic: exists e1 e2 s1 s2 s3 s4 x1 x2 x3 x4 x5 x6.(n_propeller(x5) & n_propeller(x2) & Theme(e2,x5) & Actor(e2,x4) & v_touch(e2) & of(x5,x6) & n_aircraft(x6) & a_vintage(s4) & Theme(s4,x6) & n_boy(x4) & a_young(s3) & Theme(s3,x4) & for(e1,x2) & of(x2,x3) & n_aircraft(x3) & a_vintage(s2) & Theme(s2,x3) & Actor(e1,x1) & v_reach(e1) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
hypothesis_logic: exists s1 s2 x1 x2.(a_topic(s1) & subset_of(x2,s1) & n_airplane(x2) & subset_of(x1,s1) & n_boy(x1) & a_young(s2) & Theme(s2,x1))