Answer completely and carefully based on web services for thumbs up.

True or false with small reasoning.

i) A URL is not the same as a URI. j) The predicate in an RDF statement defines attributes of the object. k) The tokeniser in a search engine must not convert the capital letters in a document to small letters. 1) An English search engine can be 60% more accurate if it uses stemming to reduce words to their stems. m) If we add skip pointers to an inverted list, we can achieve a substantial improvement in the asymptotic performance of search operations. n) There is no official standard for RESTful Web APIs. o) A GET request is used when we do not intend to change the data on a server, and therefore a GET message should not have a payload