CREATE TABLE table_62846 ("Peak" TEXT, "Country" TEXT, "Elevation  ( m ) " FLOAT, "Prominence  ( m ) " FLOAT, "Col  ( m ) " FLOAT)

Which Prominence (m) has a Col (m) of 350?
SELECT AVG("Prominence (m)") FROM table_62846 WHERE "Col (m)" = '350'
SELECT AVG("Prominence (m)") FROM "table_62846" WHERE "Col (m)" = '350'