A group of men are biking through the grass.
A group of men cycle professionally.
You can not infer it is for cycle.
exists e1 x1 x2 x3.(n_grass(x3) & through(e1,x3) & Actor(e1,x1) & v_bike(e1) & of(x1,x2) & n_man(x2) & n_group(x1))
exists x1 x2 x3.(a_topic(x1) & r_professionally(x1) & of(x1,x2) & n_cycle(x2) & of(x2,x3) & n_man(x3) & n_group(x1))