( Bacteria ( ( are ( by ( ( far ( the ( most ( numerous lifeform ) ) ) ) ( on ( this planet ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Bacteria)) (VP (VBP are) (PP (IN by) (NP (NP (RB far) (DT the) (JJS most) (JJ numerous) (NN lifeform)) (PP (IN on) (NP (DT this) (NN planet)))))) (. .)))
Bacteria are by far the most numerous lifeform on this planet.
(ROOT (S (NP (NNS Bacteria)) (VP (VBP are) (NP (NP (DT the) (RBS most) (JJ numerous) (NNS species)) (PP (IN on) (NP (DT the) (NN planet))))) (. .)))