Complex sentence: San Diego (Spanish for "Saint Didacus") is a major city in California, in San Diego County, on the coast of the Pacific Ocean in Southern California, approximately south of Los Angeles and immediately adjacent to the border with Mexico.
Split into simpler sentences: San Diego (Spanish for "Saint Didacus") is a major city in California, United States. It is in San Diego County, on the coast of the Pacific Ocean in Southern California, approximately south of Los Angeles and immediately adjacent to the border with Mexico.