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)))))
If it gets too hard, they will all give up.  
( ( If ( it ( gets ( too hard ) ) ) ) ( , ( they ( ( ( will all ) ( give up ) ) . ) ) ) )
(ROOT (S (SBAR (IN If) (S (NP (PRP it)) (VP (VBZ gets) (ADJP (RB too) (JJ hard))))) (, ,) (NP (PRP they)) (VP (MD will) (RB all) (VP (VB give) (PRT (RP up)))) (. .)))