( ( ( ( The unit ) ( itself ( ( is capitalized ) ( if ( it ( ( ( is ( named ( after ( ( a person ) ( -LRB- ( ( ( ( ( ( A Ampere ) , ) ( V Voltaire ) ) , ) etc. ) -RRB- ) ) ) ) ) ) but ) ( lowercase otherwise ) ) ) ) ) ) ) ( -LRB- ( ( ( ( m meter ) , ) ( s second ) ) -RRB- ) ) ) . )
(ROOT (S (VP (NP (NP (DT The) (NN unit)) (SBAR (S (NP (PRP itself)) (VP (VBZ is) (ADJP (JJ capitalized)) (SBAR (IN if) (S (NP (PRP it)) (VP (VP (VBZ is) (VP (VBN named) (PP (IN after) (NP (NP (DT a) (NN person)) (PRN (-LRB- -LRB-) (NP (NP (DT A) (NN Ampere)) (, ,) (NP (NNP V) (NNP Voltaire)) (, ,) (NP (FW etc.))) (-RRB- -RRB-)))))) (CC but) (VP (VBP lowercase) (ADVP (RB otherwise)))))))))) (PRN (-LRB- -LRB-) (NP (NP (NN m) (NN meter)) (, ,) (NP (JJ s) (NN second))) (-RRB- -RRB-))) (. .)))
The unit itself is capitalized if it is named after a person ( A Ampere, V Voltaire, etc.) but lowercase otherwise (m meter, s second).
(ROOT (S (SBAR (IN If) (S (NP (DT a) (NN unit)) (VP (VBZ is) (VP (VBN named) (PP (IN after) (NP (DT a) (NN person))))))) (NP (PRP it)) (VP (VBZ needs) (S (VP (TO to) (VP (VB be) (VP (VBN capitalized)))))) (. .)))