( ( ( Sunflower oil ) ( can ( be ( a ( suitable biofuel ) ) ) ) ) ( , ( ( ( ( its efficiency ) ( ( not far ) ( from ( diesel fuel ) ) ) ) , ) ( ( indicates ( ( a ( good ( combustion process ) ) ) ( confirmed ( by ( exhausts ( emission levels ) ) ) ) ) ) . ) ) ) )
(ROOT (S (S (NP (NN Sunflower) (NN oil)) (VP (MD can) (VP (VB be) (NP (DT a) (JJ suitable) (NN biofuel))))) (, ,) (NP (NP (PRP$ its) (NN efficiency)) (RRC (ADVP (RB not) (RB far)) (PP (IN from) (NP (JJ diesel) (NN fuel)))) (, ,)) (VP (VBZ indicates) (NP (NP (DT a) (JJ good) (NN combustion) (NN process)) (VP (VBN confirmed) (PP (IN by) (NP (JJ exhausts) (NN emission) (NNS levels)))))) (. .)))
Sunflower oil can be a suitable biofuel, its efficiency not far from diesel fuel, indicates a good combustion process confirmed by exhausts emission levels.
(ROOT (S (NP (NNS Biomass)) (VP (MD can) (ADVP (RB also)) (VP (VB be) (VP (VBN processed) (S (VP (TO to) (VP (VB make) (ADJP (JJ biofuel)))))))) (. .)))