Complex sentence: The system gradually organized, and by June 10 a circulation formed with sufficiently organized convection for the National Hurricane Center to classify it Tropical Depression One while located about 140 miles (225 km) south of the western tip of Cuba.
Split into simpler sentences: The system gradually organized, and by June 10 a circulation formed with sufficiently organized convection for the National Hurricane Center to classify it Tropical Depression One. At this point the storm was located about 140 miles (225 km) south of the western tip of Cuba.