(S (S (SBAR (SBAR (S (PP-SBJ (NP (PP (BASENP (NNP ２００４) (NNP ＸＰ) (NNP １４)) (IN の)) (NP (PP (NP (PP (BASENP (NN 太陽)) (IN の)) (NN 周り)) (IN の)) (BASENP (ADJP (NN 正確) (MDO な)) (NN 軌道)))) (IN が)) (VP (PP (NP (ADJP (ADVP (RB より)) (ADJP (NN 確か) (MDO な))) (NN 精度)) (IN で)) (VB 分かる))) (NN 以前)) (IN は)) (COMMA 、) (S (PP-SBJ (NP (PP (S (PP-SBJ (BASENP (NN それ)) (IN が)) (VP (PP (BASENP (NN 地球)) (IN に)) (VB ぶつかる))) (INPH という)) (NN 懸念)) (IN が)) (VP (VBV あっ) (VP (MD た))))) (PERIOD 。))
2004 XP 14 の 太陽 の 周り の 正確 な 軌道 が より 確か な 精度 で 分かる 以前 は 、 それ が 地球 に ぶつかる という 懸念 が あっ た 。
Before 2004 XP14 's exact orbital path around the sun was known with more precision , there were concerns it would hit the Earth .