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)))))
It gets easier when there are two meanings.  
( It ( ( gets ( easier ( when ( there ( are ( two meanings ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ gets) (ADJP (ADJP (JJR easier)) (SBAR (WHADVP (WRB when)) (S (NP (EX there)) (VP (VBP are) (NP (CD two) (NNS meanings))))))) (. .)))