They make up the class of Semantic Clue Elements.
( They ( ( ( make up ) ( ( the class ) ( of ( Semantic ( Clue Elements ) ) ) ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (VBP make) (PRT (RP up)) (NP (NP (DT the) (NN class)) (PP (IN of) (NP (NNP Semantic) (NNP Clue) (NNP Elements))))) (. .)))
They are unrelated to Semantic Clue Elements.
( They ( ( are ( unrelated ( to ( Semantic ( Clue Elements ) ) ) ) ) . ) )
(ROOT (S (NP (PRP They)) (VP (VBP are) (ADJP (JJ unrelated) (PP (TO to) (NP (NNP Semantic) (NNP Clue) (NNP Elements))))) (. .)))