( ( Do NOT ) ( ( use ( artificial selection ) ) . ) )
(ROOT (S (NP (NNP Do) (NNP NOT)) (VP (VBP use) (NP (JJ artificial) (NN selection))) (. .)))
Do NOT use artificial selection.
(ROOT (S (NP (NNS Humans)) (VP (VBP create) (NP (NP (JJ different) (NNS breeds)) (PP (IN of) (NP (NP (NNS organisms)) (VP (VBG using) (NP (JJ artificial) (NN selection))))))) (. .)))