if each watered down the version of the one before 
(ROOT (SBAR (IN if) (S (NP (DT each)) (VP (VBD watered) (PRT (RP down)) (NP (NP (DT the) (NN version)) (PP (IN of) (NP (NP (DT the) (CD one)) (ADVP (RB before)))))))))
(ROOT (SBAR (IN ) (S (NP (DT )) (VP (VBD ) (PRT (RP )) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NP (DT ) (CD )) (ADVP (RB )))))))))