With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Austria was re-established as a sovereign state in the wake of World War II.
text_B: The following outline is provided as an overview of and topical guide to the continent Africa  :. outline. Outline ( list ). Africa. Africa. continent. continent. Africa is the world 's second largest and second most populous continent , after Asia .. Africa. Africa. continent. continent. It is famous for its savanna , its jungles , and the Sahara -LRB- desert -RRB- .. Sahara. Sahara
not_related.