The bikers came around the corner very fast and it was a tight race with the blue biker in the lead.
A group of people having a swimming race inside a pool.
Either the bikers are in a tight race, or the group is having a swimming race.  Cannot be doing both at the same time.
exists e1 p1 s1 s3 x1 x2 x4.(n_lead(x4) & n_biker(x1) & n_biker(x1) & a_blue(s3) & Theme(s3,x1) & n_thing(x2) & n_corner(x2) & exists s2 x3.((x2 = x3) & with(x3,x1) & in(x1,x4) & n_race(x3) & a_tight(s2) & Theme(s2,x3)) & r_very(e1) & a_fast(s1) & Manner(e1,s1) & around(e1,x2) & Actor(e1,x1) & v_come(e1))
exists e1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & of(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_have(e1) & inside(x4,x6) & n_pool(x6) & n_race(x4) & of(x4,x5) & n_swimming(x5) & (x2 = x3) & n_people(x2) & n_group(x1))