Aspects of the invention include a system, a computer program product and a computer-implemented method for building a relational database between a first term and a second term. An embedding management system is used to determine a first term set based on the first term and a second term set based on the second term. An entity linking engine and a knowledge base engine are used to determine a relation match for the first term set when a relation of the first term set relates to a term from a second term set and for determining a relation match for the second term set when a relation of the second term set relates to a term from a first term set. A relation ranking engine selects a relation for the relational database having a selected number of matches.