A large group of people crosscountry skiing in the snow.
People skiing together on snow.
A group of people skiing implies that people are skiing together.
exists s1 x1 x2 x3 x4.(n_snow(x4) & a_topic(x1) & in(x1,x4) & n_crosscountry(x1) & Time(x1,x3) & n_skiing(x3) & of(x1,x2) & n_people(x2) & n_group(x1) & a_large(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3.(a_topic(x1) & a_together(s1) & Manner(e1,s1) & on(e1,x3) & n_snow(x3) & Actor(e1,x2) & v_ski(e1) & (x1 = x2) & n_people(x1))