Input (grade 13): Rising to 1,344 metres (4,406 ft) above sea level, Scotland's highest point is the summit of Ben Nevis, in Lochaber, while Scotland's longest river, the River Tay, flows for a distance of 190 km (120 miles).
Output (grade 10): Scotland's highest point is the top of Ben Nevis, in Lochaber, while Scotland's longest river, the River Tay, flows for a distance of 190 km (120 miles).