Complex sentence: The mouse sarcoma virus 3611 contains a Raf kinase related oncogene that enhances fibrosarcoma induction and the acronym RAF is derived from Rapidly Accelerated Fibrosarcoma.
Split into simpler sentences: The mouse sarcoma virus 3611 contains a Raf kinase-related oncogene that enhances fibrosarcoma induction. The acronym RAF is derived from Rapidly Accelerated Fibrosarcoma.