 
 <prompt> Wetin be Prontosil? Based on di previous question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: "The first sulfonamide and first commercially available antibacterial, Prontosil, na research team wey Gerhard Domagk dey lead develop am for 1932 for Bayer Laboratories of the IG Farben conglomerate for Germany. Domagk win Nobel Prize for Medicine for 1939 sake of im efforts. Prontosil get effect against Gram-positive cocci, but e no get effect against enterobacteria. Research dey move fast because of the success of Prontosil. The discovery and development of this sulfonamide drug open the era of antibacterials." 