With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: However , intermittent fighting between Senegalese-backed government troops and a military junta destroyed much of the country 's infrastructure and caused widespread damage to the economy in 1998 ; the civil war led to a 28 % drop in GDP that year , with partial recovery in 1999 - 2002 .
text_B: 1999 is a calendar year
entailed.