if not a home run , then at least 
(ROOT (S (SBAR (IN if) (FRAG (RB not) (NP (DT a) (NN home) (NN run)))) (, ,) (ADVP (RB then)) (ADVP (IN at) (JJS least))))
(ROOT (S (SBAR (IN ) (FRAG (RB ) (NP (DT ) (NN ) (NN )))) (, ) (ADVP (RB )) (ADVP (IN ) (JJS ))))