Original sentence: The boat left port for its first patrol on 1 August 1914, but on 9 August, U-15 was forced to lay stopped on the surface off the coast of Fair Isle, after its engines had failed
Edited sentence: The boat left port for its first patrol on 1 August 1914, but on 9 August, U-15 was forced to lie stopped on the surface off the coast of Fair Isle, after its engines had failed