With no explanation, label text_A→text_B with either "entailment", "neutral" or "contradiction".
text_A: Two significant efforts during the 1980s and 1990s served to restore the aging tower and the light was relit as a non-navigational aid in 2000.
text_B: Two significant efforts during the 19801 and 1990s served to restore the aging tower and the light was relit as a non-navigational aid in 2000.
contradiction.