( ( Basal ( cell cancer ) ) ( ( is ( ( ( the ( ( most common ) ( skin cancer ) ) ) , ) ( followed ( by ( squamous cell ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Basal) (NN cell) (NN cancer)) (VP (VBZ is) (NP (NP (DT the) (ADJP (RBS most) (JJ common)) (NN skin) (NN cancer)) (, ,) (VP (VBN followed) (PP (IN by) (NP (JJ squamous) (NN cell)))))) (. .)))
Basal cell cancer is the most common skin cancer, followed by squamous cell.
(ROOT (S (NP (JJ Squamous) (NN cell) (NN carcinoma)) (VP (VBZ is) (NP (DT the) (JJ second) (ADJP (RBS most) (JJ common)) (NN skin) (NN cancer))) (. .)))