Table: highland railway river class
[['hr no', 'hr name', 'cr no', 'lms no', 'built', 'works', 'withdrawn'], ['70', 'river ness', '938', '14756', '9 / 1915', 'hawthorn leslie 3095', '10 / 1939'], ['71', 'river spey', '939', '14757', '9 / 1915', 'hawthorn leslie 3096', '12 / 1936'], ['(72)', '(river tay)', '940', '14758', '11 / 1915', 'hawthorn leslie 3097', '9 / 1945'], ['(73)', '(river findhorn)', '941', '14759', '11 / 1915', 'hawthorn leslie 3098', '2 / 1939'], ['(74)', '(river garry)', '942', '14760', '12 / 1915', 'hawthorn leslie 3099', '12 / 1946']]
Statement: the average number of year a locomotive was in service was 25.88
Statement: the locomotive at River garry was in service longer than any other locomotive listed
Statement: 2 locomotive for the Highland Railway River Class were Built in november of 1915
Statement: the locomotive at River Ness was in service for 2 year and 10 month longer than that at River Spey
Statement: 2 locomotive were Withdrawn in 1939