Question: What north sea port was the secondary target for bombers that could not find their primary target?
Sentence: The North Sea port of Hull, a convenient and easily found target or secondary target for bombers unable to locate their primary targets, was subjected to 86 raids in the Hull Blitz during the war, with a conservative estimate of 1,200 civilians killed and 95 percent of its housing stock destroyed or damaged.
Answer in sentence: yes