With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Afghanistan is the source of a dynasty .
text_B: The land also served as the source from which the Kushans , Hephthalites , Samanids , Saffarids , Ghaznavids , Ghorids , Khiljis , Mughals , Hotaks , Durranis , and others have risen to form major empires .
SUPPORTS.