an on-going race is occurring.
The race is going on to support charity.
Sentence 1 is missing support charity
exists e1 s1 x1.(Actor(e1,x1) & v_occur(e1) & n_race(x1) & a_on-going(s1) & Theme(s1,x1))
exists e1 p1 s1 x1.(n_race(x1) & Topic(e1,p1) & exists e2 x2.(Theme(e2,x2) & Actor(e2,x1) & v_support(e2) & n_charity(x2)) & a_on(s1) & Manner(e1,s1) & Actor(e1,x1) & v_go(e1))