Left-arm unorthodox spin from right to left on the pitch. The ball turns away from the right-handed batsman, as if the bowler were an orthodox left-arm spinner. In cricketing parlance, the word "chinaman" is used to describe the stock delivery of a left-arm "unorthodox" spin bowler (though some reserve it for the googly delivery ). The origin of the term is uncertain. One version relates to a Test match played between England and the West Indies at Old Trafford in 1933. Ellis "Puss" Achong, a player of Chinese origin, was a left-arm orthodox spinner, playing for the West Indies. He had Walter Robins
Controlled vocabulary difficult issues. Choices of authorized terms are based on the principles of "user warrant" (what terms users are likely to use), "literary warrant" (what terms are generally used in the literature and documents), and "structural warrant" (terms chosen by considering the structure, scope of the controlled vocabulary). Controlled vocabularies also typically handle the problem of homographs, with qualifiers. For example, the term "pool" has to be qualified to refer to either "swimming pool" or the game "pool" to ensure that each authorized term or heading refers to only one concept. There are two main kinds of controlled vocabulary tools used