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.

Q: passage: Bull sharks can thrive in both salt and fresh water and can travel far up rivers. They have been known to travel up the Mississippi River as far as Alton, Illinois, about 700 miles (1100 km) from the ocean. However, few freshwater human-shark interactions have been recorded. Larger-sized bull sharks are probably responsible for the majority of near-shore shark attacks, including many bites attributed to other species.
 question: are there any sharks in the mississippi river?

A: Yes
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Q: passage: In organic chemistry, an alkene is an unsaturated hydrocarbon that contains at least one carbon--carbon double bond. The words alkene and olefin are often used interchangeably (see nomenclature section below). Acyclic alkenes, with only one double bond and no other functional groups, known as mono-enes, form a homologous series of hydrocarbons with the general formula CH. Alkenes have two hydrogen atoms fewer than the corresponding alkane (with the same number of carbon atoms). The simplest alkene, ethylene (CH), with the International Union of Pure and Applied Chemistry (IUPAC) name ethene, is the organic compound produced on the largest scale industrially. Aromatic compounds are often drawn as cyclic alkenes, but their structure and properties are different and they are not considered to be alkenes.
 question: can alkenes have more than one double bond?

A: Yes
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Q: passage: ILR does not entitle a person to travel to the Schengen states visa free. ILR is however a requirement for British citizens to travel there visa free, i.e. a person is only regarded as being ``fully'' British when he has ILR in the UK. Other types of British citizens may or may not require a visa. But a person from, let's say Congo, with ILR does not have the entitlement to travel to Schengen without a visa.
 question: do i need a visa for europe if i have indefinite leave to remain in uk?

A:
Yes
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