Define a scheme function (assoc-all keys a-list) where keys is a list of symbols and a-list is an assoc-list. (an assoc-list is a list …) whose elements are two-element lists whose first element is a key and whose second element is the associated value.) assoc-all returns a list of the data associated with elements of keys by a-list. e. g. (assoc-all '(a d c d) '((a apple)(b boy)(c (cat returns (apple dog (cat cow) dog). use map. note that you can't simply use assoc as one of the arguments to map; you need to use a lambda expression