Bicyclist checking to make sure that his teammate is behind him.
Bicyclists looking out for one another.
Bicyclist checking his teammate implies the bicyclists are looking out for one another.
exists e1 p1 x1 x2.(n_male(x1) & n_male(x1) & n_teammate(x2) & of(x2,x1) & ne_nam_bicyclist(x1) & Topic(e1,p1) & Actor(e1,x1) & v_check(e1) & exists e2 p2.(exists e3 p3.(Topic(e3,p3) & Actor(e3,x1) & v_sure(e3) & exists p4.behind(x2,x1)) & Topic(e2,p2) & Actor(e2,x1) & v_make(e2)))
exists e1 s1 s2 x1 x2.(a_out(s2) & Manner(e1,s2) & for(e1,x2) & n_thing(x2) & card_eq_1(x2) & a_another(s1) & Theme(s1,x2) & Actor(e1,x1) & v_look(e1) & n_bicyclist(x1))