With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Tony Blair is the Prime Minister.
text_B: The Enlargement of the Association of Southeast Asian Nations is the process of expanding the Association of Southeast Asian Nations -LRB- ASEAN -RRB- through the accession of new member states .. Association of Southeast Asian Nations. Association of Southeast Asian Nations. This process began with ASEAN 's five original members , who founded the association through the signing of Bangkok Declaration in 1967 .. Bangkok Declaration. ASEAN Declaration. Since then , the ASEAN 's membership has grown to ten with the accession of Cambodia in 1999 .. Cambodia. Cambodia. Currently , two states are seeking accession to ASEAN  : Papua New Guinea and East Timor .. Papua New Guinea. Papua New Guinea. East Timor. East Timor
not_related.