Man is crosscountry cycling in the forest.
A man riding a bicycle in a forest.
Cycling and riding could mean the same thing and could be crosscountry.
exists p1 x1 x2.(n_forest(x2) & in(p1,x2) & exists s1 x3.((x1 = x3) & n_cycling(x3) & a_crosscountry(s1) & Theme(s1,x3)) & n_man(x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & in(e1,x4) & n_forest(x4) & Theme(e1,x3) & Actor(e1,x2) & v_ride(e1) & n_bicycle(x3) & (x1 = x2) & n_man(x1))