They speak the same language as their neighbours the Pano, Conibo, and Sipibo, whom they resembled in their primitive custom and belief as now in their more civilized condition.
(They; speak; the same language) (they; resembled; L:in their primitive custom and belief as now in their more civilized condition)
They they
speak resembled
the same language
L:in their primitive custom and belief as now in their more civilized condition