With no explanation, label text_A→text_B with either "not-entailed" or "entailed".
text_A: At a time of heightened tensions between Tehran and Washington over Iran 's nuclear weapons program and calls by neo-conservatives in Washington that a second Bush term should deal with Iran aggressively , the Iranians fear that Shindand could be used as a listening post , spying facility and even a launching pad for any future US actions against Iran .
text_B: The heightening did not happen
not-entailed.