( ( ( ( Also ( known ( as ( white ( blood cells ) ) ) ) ) or ) leukocytes ) . )
(ROOT (S (VP (VP (ADVP (RB Also)) (JJ known) (PP (IN as) (NP (JJ white) (NN blood) (NNS cells)))) (CC or) (VP (VBZ leukocytes))) (. .)))
Also known as white blood cells or leukocytes.
(ROOT (S (NP (JJ Leukocytes) (NN blood) (NNS cells)) (VP (VBP are) (ADJP (JJ white))) (. .)))