premise: A little boy with a blue bike helmet and a woman in a green bike helmet are riding bikes down a street with other various bike riders.
hypothesis: A group of people are changing a bike tire.
explanation_1: A little boy cannot be a group of people.
explanation_2: Riding bikes down the street displays movement.  People are not riding bikes while changing a bike tire.
explanation_3: They cannot ride bikes and change a bike tire simultaneously.
premise_logic: exists e1 s1 s2 s3 s4 s5 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10 x11 x12.(with(e1,x10) & -(x10 = x12) & n_rider(x12) & of(x12,x4) & n_bike(x4) & n_bike(x4) & a_various(s5) & Theme(s5,x12) & n_rider(x10) & of(x10,x11) & n_bike(x11) & a_various(s4) & Theme(s4,x10) & Theme(e1,x8) & Actor(e1,x1) & v_ride(e1) & down(x8,x9) & n_street(x9) & n_bike(x8) & with(x1,x2) & subset_of(x5,x2) & in(x5,x6) & n_helmet(x6) & of(x6,x7) & n_bike(x7) & a_green(s3) & Theme(s3,x6) & n_woman(x5) & subset_of(x3,x2) & n_helmet(x3) & of(x3,x4) & a_blue(s2) & Theme(s2,x3) & n_boy(x1) & a_little(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_change(e1) & n_tire(x3) & of(x3,x4) & n_bike(x4) & of(x1,x2) & n_people(x2) & n_group(x1))