Complex sentence: Yal Devi is a major intercity express train in Sri Lanka, connecting Colombo, the nation's commercial hub, with the northern cities of Jaffna and Kankesanturai.
Split into simpler sentences: Yal Devi is a major intercity express train in Sri Lanka. Operated by Sri Lanka Railways, the Yal Devi connects Colombo, the nation's commercial hub, with the northern cities of Jaffna and Kankesanturai.