With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Gustave Eiffel made significant contributions to aerodynamics.
text_B: Alexandre Gustave Eiffel -LRB- born Bonickhausen ; -LSB- ˈaɪfəl -RSB- -LSB- ɛfɛl -RSB- ; 15 December 1832 -- 27 December 1923 -RRB- was a French civil engineer and architect .. civil engineer. civil engineer. A graduate of Ecole Centrale Paris , he made his name with various bridges for the French railway network , most famously the Garabit viaduct .. Ecole Centrale Paris. Ecole Centrale des Arts et Manufactures. Garabit viaduct. Garabit viaduct. He is best known for the world-famous Eiffel Tower , built for the 1889 Universal Exposition in Paris , and his contribution to building the Statue of Liberty in New York .. Eiffel Tower. Eiffel Tower. Statue of Liberty. Statue of Liberty. 1889 Universal Exposition. Exposition Universelle ( 1889 ). After his retirement from engineering , Eiffel focused on research into meteorology and aerodynamics , and making significant contributions in both fields .. meteorology. meteorology. aerodynamics. aerodynamics
related.