(S (S (PP (IN On) (BASENP (DT the) (JJ other) (NN hand))) (COMMA ,) (S (NP (BASENP (DT the) (JJ tremendous) (NN downdraft)) (PP (IN from) (BASENP (DT the) (JJ bigger) (NN aircraft)))) (VP (MD may) (VP (VB make) (S (BASENP (DT the) (NN fire)) (ADJP (JJR worse))))))) (PERIOD .))