instruction:
In this task you will be given a passage and a yes/no question based on the passage. You should answer the question using the information from the passage.
question:
passage: Sockeye salmon (Oncorhynchus nerka), also called red salmon, kokanee salmon, or blueback salmon, is an anadromous species of salmon found in the Northern Pacific Ocean and rivers discharging into it. This species is a Pacific salmon that is primarily red in hue during spawning. They can grow up to 84 cm (2 ft 9 in) in length and weigh 2.3 to 7 kg (5.1--15.4 lb). Juveniles remain in freshwater until they are ready to migrate to the ocean, over distances of up to 1,600 km (990 mi). Their diet consists primarily of zooplankton. Sockeye salmon are semelparous, dying after they spawn. Some populations, referred to as kokanee, do not migrate to the ocean and live their entire lives in freshwater.
 question: is sockeye salmon the same as red salmon?
answer:
Yes


question:
passage: Calcium channel blocker toxicity is the taking of too much of the medications known as calcium channel blockers (CCBs) either by accident or on purpose. This often causes a slow heart rate and low blood pressure. This can progress to the heart stopping altogether. Some CCBs can also cause a fast heart rate as a result of the low blood pressure. Other symptoms may include nausea, vomiting, sleepiness, and shortness of breath. Symptoms usually occur in the first six hours but with some forms of the medication may not start until 24 after hours.
 question: do calcium channel blockers cause shortness of breath?
answer:
Yes


question:
passage: The special exception which exists in the Criminal Justice Act 1988 (Sec. 139) for folding knives (pocket knives) with blades less than 3 inches (76mm) long, is another ``common sense'' measure accepting that some small knives are carried for general utility; This exemption however only applies to folding knives without a locking mechanism. The wording of the Criminal Justice Act does not mention locking and so the definition of ``folding pocket knife'' was settled through case law. In the Crown Court appeal of Harris v. DPP (1992) and the Court of Appeal case of R. v Deegan (1998) the ruling that 'folding' was intended to mean 'non-locking' was upheld. As the only higher court in England and Wales to the Court of Appeal is the Supreme Court, the only way the decision in R. v. Deegan could be overturned is by a dissenting ruling by the Supreme Court or by Act of Parliament.
 question: is it legal to carry a pocket knife in england?
answer:

Yes