This challenge is related to the Lisp family of languages. Note that challenges that require the answers to be in a specific language are generally discouraged.
Lisp is a family of functional programming languages with a distinctive parenthesis-heavy syntax. Use this tag for challenges about parsing Lisp-like syntax, interpreting Lisp and its dialects, and tips about golfing in Lisp dialects.
Major languages in the lisp family include
Common Lisp
Scheme
Clojure