Passage: The earliest settlement was located at the present-day Tell es-Sultan (or Sultan's Hill), a couple of kilometers from the current city. In both Arabic and Hebrew, tell means "mound" – consecutive layers of habitation built up a mound over time, as is common for ancient settlements in the Middle East and Anatolia. Jericho is the type site for the Pre-Pottery Neolithic A (PPNA) and Pre-Pottery Neolithic B (PPNB) periods.

Question: What does PPNB stand for?
Pre-Pottery Neolithic B