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Problem-solving Some databases use symbols rather than words for selection rules. Here are some of the symbols and their meanings. Study this extract from a database of members of a sports club, and the results of five searches. Write selection rules to obtain these results. Use the symbols above. Result - Heden Trim Selection rule - Occupation = technician. AND. Sex = F Search results 1 Lillas Brown. Alan Brew. John Walls 2 John Pond 3 Lillias Brown. Helen Trim 4 John Walls 5 Arnold Bright