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: Not all functions have inverse functions. In order for a function f: X Y to have an inverse, it must have the property that for every y in Y there must be one, and only one x in X so that f(x) = y. This property ensures that a function g: Y X will exist having the necessary relationship with f.
question: if a function is not one to one does it have an inverse?
answer:
No

question:
passage: Wolves were once present in Great Britain. Early writing from Roman and later Saxon chronicles indicate that wolves appear to have been extraordinarily numerous on the island. Unlike other British animals, wolves were unaffected by island dwarfism, with certain skeletal remains indicating that they may have grown as large as Arctic wolves. The species was exterminated from Britain through a combination of deforestation and active hunting through bounty systems.
question: are there wolves in the wild in the uk?
answer:
No

question:
passage: Soybean oil, eggs, water, distilled and cider vinegar, salt, oleoresin paprika, natural flavors, calcium disodium EDTA added to protect flavor.
question: does duke's mayonnaise have sugar in it?
answer:
No