is that it progresses in such a low-key manner that it risks monotony 
(ROOT (VP (VBZ is) (SBAR (IN that) (S (NP (PRP it)) (VP (VBZ progresses) (PP (IN in) (NP (PDT such) (DT a) (ADJP (JJ low) (HYPH -) (JJ key)) (NN manner))) (SBAR (WDT that) (S (NP (PRP it)) (VP (VBZ risks) (NP (NN monotony))))))))))
(ROOT (VP (VBZ ) (SBAR (IN ) (S (NP (PRP )) (VP (VBZ ) (PP (IN ) (NP (PDT ) (DT ) (ADJP (JJ ) (HYPH ) (JJ )) (NN ))) (SBAR (WDT ) (S (NP (PRP )) (VP (VBZ ) (NP (NN ))))))))))