With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Darth Vader was prophesied to bring balance to the Force.
text_B: Nishantha Muthuhettigamage is a Sri Lankan politician , a member of the Parliament of Sri Lanka .. Sri Lanka. Sri Lanka. Parliament of Sri Lanka. Parliament of Sri Lanka. He belongs to the Sri Lanka Freedom Party .. Sri Lanka Freedom Party. Sri Lanka Freedom Party. Sri Lanka. Sri Lanka. He is the current deputy minister for Ports and Shipping in Sri Lanka .. Sri Lanka. Sri Lanka
not_related.