(S (S (BASENP (NNP Randjelovic)) (VP (VP (VBD was) (VP (VP (VBG conducting) (BASENP (DT a) (NN training) (NN flight))) (PP (IN at) (NP (BASENP (DT the) (NN time)) (PP (IN of) (BASENP (DT the) (NN accident))))))) (CC and) (VP (VBD was) (VP (VBG preparing) (PP (IN for) (BASENP (DT the) (NNP Belgrade) (NN aircraft) (NN acrobatics) (NN show))))))) (PERIOD .))