With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ellen DeGeneres married a newscaster.
text_B: Underground coal gasification -LRB- UCG -RRB- is an industrial process which converts coal into product gas .. coal. coal. coal gasification. coal gasification. gasification. gasification. UCG is an in-situ gasification process carried out in non-mined coal seams using injection of oxidants , and bringing the product gas to surface through production wells drilled from the surface .. coal. coal. gasification. gasification. oxidants. Oxidizing agent. The predominant product gases are methane , hydrogen , carbon monoxide and carbon dioxide .. methane. methane. hydrogen. hydrogen. carbon monoxide. carbon monoxide. carbon dioxide. carbon dioxide. Ratios vary depending upon formation pressure , depth of coal and oxidant balance .. coal. coal. Gas output may be combusted for electricity production .. Alternatively gas can be used to produce synthetic natural gas or hydrogen and carbon monoxide can be used as a chemical feedstock for the production of fuels -LRB- e.g. diesel -RRB- , fertilizer , explosives and other products .. chemical. chemical. hydrogen. hydrogen. carbon monoxide. carbon monoxide. The technique can be applied to coal resources that are otherwise unprofitable or technically complicated to extract by traditional mining methods .. coal. coal. traditional mining. traditional mining. UCG offers an alternative to conventional coal mining methods for some resources .. coal. coal. coal mining. coal mining. It has been linked to a number of concerns from environmental campaigners .
not_related.