Complex sentence: It is owned by the same conglomerate that operates "Yediot Ahronot", the country's leading daily newspaper, but all of "Ynet"' s content is original work published on the website only, written by an independent staff.
Split into simpler sentences: It is owned by the same conglomerate that operates "Yediot Ahronot", the country's leading daily newspaper. However, all of "Ynet"' s content is original work, published exckusively on the website and written by an independent staff.