( ( ( ( Viruses ( ( are ( by far ) ) ( ( the ( ( most abundant ) ( biological entities ) ) ) ( on Earth ) ) ) ) and ) ( they ( outnumber ( ( all ( the others ) ) ( put together ) ) ) ) ) . )
(ROOT (S (S (NP (NNS Viruses)) (VP (VBP are) (ADVP (IN by) (RB far)) (NP (NP (DT the) (ADJP (RBS most) (JJ abundant)) (JJ biological) (NNS entities)) (PP (IN on) (NP (NNP Earth)))))) (CC and) (S (NP (PRP they)) (VP (VBP outnumber) (S (NP (PDT all) (DT the) (NNS others)) (VP (VB put) (ADVP (RB together)))))) (. .)))
Viruses are by far the most abundant biological entities on Earth and they outnumber all the others put together.
(ROOT (S (NP (NNS Viruses)) (VP (VBP are) (NP (NP (DT the) (ADJP (RBS most) (JJ abundant)) (NN type)) (PP (IN of) (NP (NP (JJ biological) (NN entity)) (PP (IN on) (NP (DT the) (NN earth))))))) (. .)))