An inferential knowledge construction support apparatus 1 has a literal generation unit 2 that generates literal information based on the extracted elements, a rule generation unit 3 that estimates a causal or implicational relation between literals, using plural pieces of literal information, and generates rule information by allocating literal information estimated to be in the causal/implicational relation to an antecedent and a consequent, a display information generation unit 4 that generates display information to be used for causing a display device to output a rule editing user interface for displaying, in a juxtaposed manner, a literal display area for displaying the literal information and descriptive information corresponding to the literal information and a rule display area for displaying the rule information and descriptive information corresponding to the rule information, and an editing unit 5 that enables an operator to edit the rule information, using the rule editing user interface.