Yes. My prof professor, well he actually asked me to work on these ies, he was one of the first entomologists working with isotopes, you know, radioisotopes. And he marked food and looked how it spread in a colony of ants, et cetera. And he gave courses even for the International Agency of Energy, atomic energy in Florida, in Gainesville every year and so on. So and so he wanted, and very new at that time was the sterile insect technique. And he had seen coch EA or troga in us, which was very successful. And meanwhile, there were other insects in the agriculture which were now eradicated even by the insect technology, I mean the sterile insect technology. And he said, you start with ies, I read it. And this is an own world, own closed world of a few people who work on ies.
