The boy on the bike is wearing safety glasses and a helmet.
A boy goes without his training wheels on his bike for the first time.
It is not implied that the boy biking with safety equipment is riding without his training wheels for the first time.
exists e1 x1 x2 x3 x4 x5 x6.(n_bike(x2) & n_boy(x1) & Theme(e1,x3) & Actor(e1,x1) & v_wear(e1) & subset_of(x6,x3) & n_helmet(x6) & subset_of(x4,x3) & n_glass(x4) & of(x4,x5) & n_safety(x5) & on(x1,x2))
exists e1 s1 x1 x2 x3 x4 x5.(n_time(x3) & a_first(s1) & Theme(s1,x3) & for(e1,x3) & on(e1,x2) & n_bike(x2) & of(x2,x1) & n_male(x1) & n_male(x1) & -with(e1,x4) & n_wheel(x4) & of(x4,x5) & n_training(x5) & of(x4,x1) & Actor(e1,x1) & v_go(e1) & n_boy(x1))