Complex sentence: The names of twenty-three Nairi lands were recorded by Tiglath-Pileser I (10th century BC) their southern point was Tumme, known to have been south-west of Lake Urmia, and their northern one Daiaeni.
Split into simpler sentences: The names of twenty-three Nairi lands were recorded by Tiglath-Pileser I (10th century BC). Their southernmost point was Tumme, known to have been south-west of Lake Urmia, and their northern one Daiaeni.