With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Boeing 707 is a narrow-body jet airliner with four engines.
text_B: For another use of the term `` shale oil '' , meaning synthetic crude oil derived from oil shale , see shale oil .. synthetic crude. synthetic crude. oil shale. oil shale. shale oil. shale oil. shale. shale. Tight oil -LRB- also known as shale oil or light tight oil , abbreviated LTO -RRB- is light crude oil contained in petroleum-bearing formations of low permeability , often shale or tight sandstone .. shale oil. shale oil. light crude oil. light crude oil. petroleum. petroleum. permeability. Permeability ( earth sciences ). shale. shale. Economic production from tight oil formations requires the same hydraulic fracturing and often uses the same horizontal well technology used in the production of shale gas .. shale. shale. hydraulic fracturing. hydraulic fracturing. horizontal well. Directional drilling. shale gas. shale gas. While sometimes called `` shale oil '' , tight oil should not be confused with oil shale , which is shale rich in kerogen , or shale oil , which is oil produced from oil shales .. oil shale. oil shale. shale oil. shale oil. shale. shale. kerogen. kerogen. Therefore , the International Energy Agency recommends to use the term `` light tight oil '' for oil produced from shales or other very low permeability formations , while World Energy Resources 2013 report by the World Energy Council uses the term `` tight oil '' .. permeability. Permeability ( earth sciences ). International Energy Agency. International Energy Agency. World Energy Council. World Energy Council. In May 2013 the International Energy Agency in its Medium-Term Oil Market Report -LRB- MTOMR -RRB- said that the North American oil production surge led by unconventional oils - US light tight oil -LRB- LTO -RRB- and Canadian oil sands - had produced a global supply shock that would reshape the way oil is transported , stored , refined and marketed .. International Energy Agency. International Energy Agency. oil sands. oil sands
not_related.