Abstract: The present disclosure provides a construction for managing domain specific, configurable natural-language processing. The system described allows for the extraction of entities and other discrete grammar components through a collection of iterative rulesets. Each instance of the parser system may be tailored to the domain of a particular subject of inquiry. Instance-level constraints enable increasingly fine classification on input data. Intuitive rulesets enable instance-level configuration by non-technical clients. A configured instance of the system receives unstructured text inputs and outputs structured data relevant to the domain of the instance.