premise: The Penibaetic System is a system of mountain ranges.
hypothesis: A mountain range also called mountains or mountain barrier/belt/system , is a geographic area containing numerous geologically related mountains . A mountain system or system of mountain ranges , sometimes is used to combine several geological features that are geographically ( regionally ) related . The Penibaetic System ( Sistema Penibético or Cordillera Penibética ) is the southernmost of the three systems of mountain ranges of the Baetic System in the southern Iberian Peninsula .