Ellis Achong 1932. Achong is better known for playing cricket. He was mainly a bowler. His stock ball was left-arm orthodox spin (left-arm finger spin), but one of his variations was unorthodox left-arm spin. After bowling this variation to have Walter Robins stumped at Old Trafford in 1933, it is reputed that Robins said to the umpire, Joe Hardstaff Sr., "fancy being done by a bloody Chinaman". Learie Constantine is said to have replied: "Do you mean the bowler or the ball?" An unorthodox left-arm spin delivery (spinning from the off side to the leg side for a right-handed batsman) is known
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