With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Gianluigi Buffon was an Italian soccer coach.
text_B: The Niger Delta Avengers -LRB- NDA -RRB- is a militant group in Nigeria 's Niger Delta .. Niger Delta. Niger Delta. militant. Insurgent. Nigeria. Nigeria. The group publicly announced their existence in March 2016 .. The NDA have attacked oil producing facilities in the delta , causing the shutdown of oil terminals and a fall in Nigeria 's oil production to its lowest level in twenty years .. Nigeria. Nigeria. The attacks caused Nigeria to fall behind Angola as Africa 's largest oil producer .. Nigeria. Nigeria. oil producer. List of countries by oil production. The reduced oil output has hampered the Nigerian economy and destroyed its budget , since Nigeria depends on the oil industry for nearly all its government revenues .. Nigeria. Nigeria. The NDA 's declared aims are to create a sovereign state in the Niger Delta and have threatened to disrupt Nigeria 's economy if their aims are not met .. Niger Delta. Niger Delta. Nigeria. Nigeria. The NDA claims its members are `` young , educated , well travelled ... and educated in east Europe '' .. The group have criticised the President of Nigeria , Muhammadu Buhari , for having never visited the delta and his detention of the Biafran independence activist Nnamdi Kanu .. Nigeria. Nigeria. President of Nigeria. President of Nigeria. Muhammadu Buhari. Muhammadu Buhari. Nnamdi Kanu. Nnamdi Kanu
not_related.