relieved that his latest feature , r xmas , marks a modest if encouraging return to form 
(ROOT (S (VP (VBN relieved) (SBAR (IN that) (S (NP (NP (PRP$ his) (JJS latest) (NN feature)) (, ,) (NP (AFX r) (NN xmas)) (, ,)) (VP (VBZ marks) (NP (NP (DT a) (ADJP (JJ modest) (IN if) (VBG encouraging)) (NN return)) (PP (IN to) (NP (NN form))))))))))
(ROOT (S (VP (VBN ) (SBAR (IN ) (S (NP (NP (PRP$ ) (JJS ) (NN )) (, ) (NP (AFX ) (NN )) (, )) (VP (VBZ ) (NP (NP (DT ) (ADJP (JJ ) (IN ) (VBG )) (NN )) (PP (IN ) (NP (NN ))))))))))