( ( Oak-Tree ( , ( ( ( backwards and ) forwards ) ( ( in time ) ( as ( long ( as ( the ( Acorn/Oak-Tree life ) ) ) ) ) ) ) ) ) ( survives . ) )
(ROOT (S (NP (NP (NNP Oak-Tree)) (PRN (, ,) (ADVP (RB backwards) (CC and) (RB forwards)) (ADVP (IN in) (NN time)) (ADJP (RB as) (JJ long) (PP (IN as) (NP (DT the) (JJ Acorn/Oak-Tree) (NN life)))))) (VP (VBZ survives)) (. .)))
Oak-Tree, backwards and forwards in time as long as the Acorn/Oak-Tree life survives.
(ROOT (S (NP (NP (DT An) (NN acorn)) (VP (VBG growing) (PP (IN into) (NP (DT an) (JJ adult) (NN tree))))) (VP (MD will) (VP (VB take) (NP (DT the) (JJS longest) (NN time)) (S (VP (TO to) (VP (VB observe)))))) (. .)))