Original sentence: In 1996, Port Authority FC was a member of the inaugural Thai Premier League season.In the following 5 seasons, the club finsihed in the top five of the table.Since that, the club has been a constant presence in the top flight.They achieved their highest league finish during the 1999 Season, when they were beaten to Title on goal difference by Royal Thai Air Force FC
Edited sentence: In 1996, Port Authority FC were a member of the inaugural Thai Premier League season.In the following 5 seasons, the club finsihed in the top five of the table each time.Since then the club has been a constant presence in the top flight.They achieved their highest League finish of 2nd during the 1999 Season, when they were beaten to Title on goal difference by Royal Thai Air Force FC