The going gets tougher, however, as the two meanings of the answer move further 
( ( The going ) ( ( gets ( ( tougher ( , ( however , ) ) ) ( as ( ( the ( two meanings ) ) ( of ( the ( answer move ) ) ) ) ) ) ) further ) )
(ROOT (S (NP (DT The) (NN going)) (VP (VBZ gets) (ADJP (ADJP (ADJP (JJR tougher)) (PRN (, ,) (ADVP (RB however)) (, ,))) (PP (IN as) (NP (NP (DT the) (CD two) (NNS meanings)) (PP (IN of) (NP (DT the) (NN answer) (NN move)))))) (ADVP (RBR further)))))
When there are two meanings it gets harder.  
( ( When ( there ( are ( two meanings ) ) ) ) ( it ( ( gets harder ) . ) ) )
(ROOT (S (SBAR (WHADVP (WRB When)) (S (NP (EX there)) (VP (VBP are) (NP (CD two) (NNS meanings))))) (NP (PRP it)) (VP (VBZ gets) (ADVP (RBR harder))) (. .)))