, those rejected must have been astronomically bad 
(ROOT (S (, ,) (NP (NP (DT those)) (VP (VBN rejected))) (VP (MD must) (VP (VB have) (VP (VBN been) (ADJP (RB astronomically) (JJ bad)))))))
(ROOT (S (, ) (NP (NP (DT )) (VP (VBN ))) (VP (MD ) (VP (VB ) (VP (VBN ) (ADJP (RB ) (JJ )))))))