Given the following passage  "The first sulfonamide and first commercially available antibacterial, Prontosil, was developed by a research team led by Gerhard Domagk in 1932 at the Bayer Laboratories of the IG Farben conglomerate in Germany. Domagk received the 1939 Nobel Prize for Medicine for his efforts. Prontosil had a relatively broad effect against Gram-positive cocci, but not against enterobacteria. Research was stimulated apace by its success. The discovery and development of this sulfonamide drug opened the era of antibacterials.",  answer the following question. Note that the answer is present within the text.  Question: Who, between Domagk and IG Farben, did, in fact, own Bayer Laboratories?
The answer to this question is:
IG Farben