Table:
text: Sunline
Race record
1998-99 Season as a Three Year Old
Result_ Date_ Race Venue Group_ Distance Weight_kg Jockey Winner_2nd
2nd 20 February 1999 Angus Armanasco Stakes Caulfield G3 1600 m 55.5 L. Cassidy 1st - Rose O`War
Won 6 March 1999 AV Kewney Stakes Flemington G2 1600 m 55.5 G. Childs 2nd - Rose O`War
Won 20 March 1999 Moonee Valley Oaks Moonee Valley G3 2040 m 55.5 G. Childs 2nd - Grand Archway
Won 3 April 1999 Doncaster Randwick G1 1600 m 52 L. Cassidy 2nd - Lease

Question: What group was Sunline in when he set a three-year-old race record at Moonee Valley in the 1998-99 season?