Sprout is a project dedicated to a nested key-value pair programming language native to the Entity Attribute Value database model. Its environment is a Relational Database Management System, specifically Postgres 9. It is implemented with Procedural SQL and employs a key-value translator vernacular to EAV data model. The model provides storage of objects, object metadata definitions and program code. Sprout executes requests via SQL client interface and returns objects of various types. It has characteristics of a column-oriented database.