With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Kangana Ranaut was a firefighter.
text_B: Butyric acid -LRB- from Greek βουτυρον , meaning `` butter '' -RRB- , also known under the systematic name butanoic acid , abbreviated BTA , is a carboxylic acid with the structural formula CH3CH2CH2-COOH .. Greek. Greek language. carboxylic acid. carboxylic acid. COOH. carboxyl group. butter. butter. Salts and esters of butyric acid are known as butyrates or butanoates .. Salts. salt ( chemistry ). Butyric acid is found in milk , especially goat , sheep and buffalo milk , butter , parmesan cheese , and as a product of anaerobic fermentation -LRB- including in the colon and as body odor -RRB- .. milk. milk. goat. goat. sheep. sheep. buffalo. American Bison. butter. butter. parmesan cheese. parmesan cheese. fermentation. Fermentation ( biochemistry ). colon. Colon ( anatomy ). body odor. body odor. It is also found in milk chocolate produced by the Hershey process , or added to imitate the flavour of Hershey 's chocolate .. milk. milk. Hershey process. Hershey process. Butyric acid is present in , and is the main distinctive smell of , human vomit .. vomit. vomit. smell. odor. human. human. It has an unpleasant smell and acrid taste , with a sweetish aftertaste similar to ether .. ether. diethyl ether. smell. odor. taste. taste. Mammals with good scent detection abilities , such as dogs , can detect it at 10 parts per billion , whereas humans can only detect it in concentrations above 10 parts per million .. parts per billion. parts per billion. parts per million. parts per million. Butyric acid was first observed in impure form in 1814 by the French chemist Michel Eugene Chevreul .. Michel Eugene Chevreul. Michel Eugene Chevreul. By 1818 , he had purified it sufficiently to characterize it .. However , Chevreul did not publish his early research on butyric acid ; instead , he deposited his findings in manuscript form with the secretary of the Academy of Sciences in Paris , France .. Henri Braconnot , a French chemist , was also researching the composition of butter and was publishing his findings , and this led to disputes about priority .. butter. butter. Henri Braconnot. Henri Braconnot. As early as 1815 , Chevreul claimed that he had found the substance responsible for the smell of butter .. butter. butter. smell. odor. By 1817 , he published some of his findings regarding the properties of butyric acid and named it .. However , it was not until 1823 that he presented the properties of butyric acid in detail .. The name of butyric acid comes from the Latin word for butter , butyrum -LRB- or buturum -RRB- , the substance in which butyric acid was first found .. butter. butter
not_related.