Second, a clue may name a class of objects which includes the answer, like bird for COCK.
( Second ( , ( ( a clue ) ( ( may ( name ( ( a class ) ( of ( objects ( which ( ( ( includes ( the answer ) ) , ) ( like ( bird ( for COCK ) ) ) ) ) ) ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (LS Second)) (, ,) (NP (DT a) (NN clue)) (VP (MD may) (VP (VB name) (NP (NP (DT a) (NN class)) (PP (IN of) (NP (NP (NNS objects)) (SBAR (WHNP (WDT which)) (S (VP (VBZ includes) (NP (DT the) (NN answer)) (, ,) (PP (IN like) (NP (NP (NN bird)) (PP (IN for) (NP (NNP COCK))))))))))))) (. .)))
Another example is Boggle for board game.
( ( Another example ) ( ( is ( Boggle ( for ( board game ) ) ) ) . ) )
(ROOT (S (NP (DT Another) (NN example)) (VP (VBZ is) (NP (NP (NNP Boggle)) (PP (IN for) (NP (NN board) (NN game))))) (. .)))