Complex sentence: Trains are now also being a popular means of public transportation in the Metro Manila, the metropolis is served by the Manila Light Rail Transit System (LRT), the Manila Metro Rail Transit System (MRT) and the Philippine National Railways (PNR).
Split into simpler sentences: Trains are now also being a popular means of public transportation in Metro Manila. The metropolis is served by the Manila Light Rail Transit System (LRT), the Manila Metro Rail Transit System (MRT) and the Philippine National Railways (PNR).