Natural language question answering using non-relational tables

A computer program product comprising:

• one or more computer-readable storage media and program instructions stored on the one or more computer-readable storage media, the program instructions comprising:
• program instructions to receive a question regarding a non-relational data table;
• program instructions to generate a schema based on a physical layout of the non-relational data table, wherein the schema includes one or more predicates that indicate the physical layout of the non-relational data table;
• program instructions to extract at least one feature of the question using a natural language processing (NLP) model;
• program instructions to extract at least one similar feature of the non-relational data table to the extracted at least one feature of the question;
• program instructions to determine at least one relevant cell in the non-relational data table based on the at least one feature of the question and the at least one similar feature of the non-relational data table;
• and
• program instructions to provide an answer to the question, wherein the answer is based on the at least one relevant cell.

A computer system comprising:

• one or more computer processors;
• one or more computer readable storage media;
• and
• program instructions stored on the computer readable storage media for execution by at least one of the one or more processors, the program instructions comprising:
• program instructions to receive a question regarding a non-relational data table;
• program instructions to generate a schema based on a physical layout of the non-relational data table, wherein the schema includes one or more predicates that indicate the physical layout of the non-relational data table;
• program instructions to extract at least one feature of the question using a natural language processing (NLP) model;
• program instructions to extract at least one similar feature of the non-relational data table to the extracted at least one feature of the question;
• program instructions to determine at least one relevant cell in the non-relational data table based on the at least one feature of the question and the at least one similar feature of the non-relational data table;
• and
• program instructions to provide an answer to the question, wherein the answer is based on the at least one relevant cell.