Complex sentence: Cypress Systems, Inc. is a biotech company headquartered in Fresno, California and is best known for its research, in colaboration with the National Cancer Institute (NCI), regarding the use of selenium supplementation for the prevention of a variety of cancers.
Split into simpler sentences: Cypress Systems, Inc. is a biotech company headquartered in Fresno, California. The company is best known for its research, in colaboration with the National Cancer Institute (NCI), regarding the use of selenium for the prevention of a variety of cancers.