Complex sentence: It is believed to be the'tomb' of Absalom, although this contradicts 2 Samuel 18:17 which says Absalom's body was covered over with stones in a pit in the forest of Ephraim.
Split into simpler sentences: It is believed to be the'tomb' of Absalom. It may contradict 2 Samuel 18:17 which says Absalom's body was covered over with stones in a pit in the forest of Ephraim.