sentence: The port of Paris is the most important fluvial port in France: About 20.2 million tons of merchanise are handled each year, 20 miilon tons of this merchandise come from fluvial transport.
modified: fix grammar: The port of Paris is the most important fluvial port in France: About 20.2 million tons of merchanise are handled each year, 20 miilon tons of this merchandise came from fluvial transport.