There are seven students - Aaron, Bobby, Chaman, Daman, Shiva, Yogesh and Zaid - sitting in their classroom, facing in the southern direction in such a way that Aaron and Daman do not sit together. Zaid sits second to the left of Shiva. Bobby does not sit with Zaid. Shiva is fourth to the right of Chaman. Aaron and Bobby are not sitting together. Chaman sits in between Daman and Yogesh. Yogesh sits second to the left of the one who sits second to the left of Bobby. Who will sit at the extreme ends?