 
 <prompt> ```Why e dey easy say dem discover tyrothricin? Based on the previous question, write a context wey contain the answer. E fit be 1 - 20 sentences. Context:``` <response>: In 1939, wen World War II start, Rene Dubos report say dem discover di first antibiotic wey come from nature, tyrothricin, na compound of 20% gramicidin and 80% tyrocidine, from B. brevis. E be one of di first antibiotics wey dem dey produce for market and e dey very effective for treating wounds and ulcers during World War II. But gramicidin no fit dey use for body because e dey toxic. Tyrocidine sef too toxic for body. Di research wey dem get during dat time no dey share between di Axis and di Allied powers during di war. 