Types of bowlers in cricket Pakistan and Anil Kumble of India rank amongst the most successful bowlers in Test cricket history. Left-handed wrist spinners, who are much rarer than right-handed wrist-spinners, are called chinaman bowlers, after an early left-arm finger spinner of Chinese descent, Ellis Achong, who sometimes bowled wrist spinners as a variation while playing for the West Indies. A ball delivered in this way will spin from the off-side to the leg-side for a right-handed batsman. Paul Adams of South Africa is the best-known recent chinaman bowler. Australian one-day all-rounder Brad Hogg is another current exponent of left-arm wrist-spin, as is his teammate,
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