( ( Plant ( a seed ) ) ( , ( ( watch ( it grow ) ) . ) ) )
(ROOT (S (NP (NP (NNP Plant)) (NP (DT a) (NN seed))) (, ,) (VP (VBP watch) (S (NP (PRP it)) (VP (VB grow)))) (. .)))
Plant a seed, watch it grow.
(ROOT (S (NP (JJ Heirloom) (NNS seeds)) (VP (VBP come) (PP (IN from) (NP (NP (NNS plants)) (SBAR (WHNP (WDT that)) (S (VP (VBD were) (ADVP (RB traditionally)) (VP (VBN grown) (PP (IN in) (NP (JJ human) (NNS populations))))))))) (, ,) (ADJP (RB as) (VBN opposed) (PP (TO to) (NP (NP (DT the) (NNS seeds)) (VP (VBN used) (PP (IN for) (NP (JJ large-scale) (JJ agricultural) (NN production)))))))) (. .)))