2531. spartns
      Spartns is a SPARse TeNSor representation library
2532. spath
      SPath is a library for running search queries against s-expressions, intended to match parts of them that the user needs
2533. spatial-trees
      spatial-trees is a set of dynamic index data structures for spatially-extended data
2534. speaker - Speech synthesis library
      Multiplatform Speech synthesis library wrapper for Common Lisp
2535. Special Slots
      A kind of pseudo-slot where the value is stored in a hidden symbol-value outside of the instance
2536. spinneret
      Common Lisp HTML5 generator
2537. SPLASH
      SPLASH is a library for displaying interactive splash screens containing warnings, notices and other information
2538. SPLIT-SEQUENCE
      SPLIT-SEQUENCE (formerly known as PARTITION) is a member of the Common Lisp Utilities family of programs, designed by community consensus
2539. SQL
      SQL (Structured Query Language) is a language for describing queries and updates against a relational database
2540. SQLite Lisp interface
      SQLite Lisp interface is an interface to the SQL database SQLite library

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