[['built', 'number', 'type', 'slm number', 'wheel arrangement', 'location', 'notes'], ['1895', '1', 'mountain railway rack steam locomotive', '923', '0 - 4 - 2 t', 'snowdon mountain railway', 'ladas'], ['1895', '2', 'mountain railway rack steam locomotive', '924', '0 - 4 - 2 t', 'snowdon mountain railway', 'enid'], ['1895', '3', 'mountain railway rack steam locomotive', '925', '0 - 4 - 2 t', 'snowdon mountain railway', 'wyddfa'], ['1896', '4', 'mountain railway rack steam locomotive', '988', '0 - 4 - 2 t', 'snowdon mountain railway', 'snowdon'], ['1896', '5', 'mountain railway rack steam locomotive', '989', '0 - 4 - 2 t', 'snowdon mountain railway', 'moel siabod'], ['1922', '6', 'mountain railway rack steam locomotive', '2838', '0 - 4 - 2 t', 'snowdon mountain railway', 'padarn'], ['1923', '7', 'mountain railway rack steam locomotive', '2869', '0 - 4 - 2 t', 'snowdon mountain railway', 'ralph'], ['1923', '8', 'mountain railway rack steam locomotive', '2870', '0 - 4 - 2 t', 'snowdon mountain railway', 'eryri']]
the Locomotive with the highest Slm Number has Eryri for the Note
the [ENT] with the highest [ENT] has [ENT] for the [ENT]