(S (S (PP-SBJ (NP (S (PP-SBJ (BASENP (NN 彼)) (IN が)) (VP (S (BASENP (NN 最近)) (S (PP-SBJ (BASENP (NN 健康)) (IN が)) (VP (VP (VBV 衰え) (INTE て)) (VP (VB いる))))))) (NN こと)) (IN は)) (VP (VP (VP (VBO 知ら) (VP (VBV れ))) (INTE て)) (VP (VBV い) (VP (MD た))))) (PERIOD 。))
彼 が 最近 健康 が 衰え て いる こと は 知ら れ て い た 。
He has been known to be in declining health in recent years .