With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Liberia declared its independence on Mars.
text_B: Zenon Caravella -LRB- born 17 March 1983 in Cairns , Australia -RRB- is an Australian football -LRB- soccer -RRB- player who last played for Newcastle Jets in the A-League .. Cairns. Cairns. Newcastle Jets. Newcastle Jets FC. A-League. A-League
not_related.