Let us now consider how logic programming caters to the planned and improvised ways of using a computer. Logic programming can be summarized as a way of using a computer where the relationbetween input and output is defined in predicate logic and where a suitable interpreter uses this definitiontogether with given input data to construct the corresponding output. Although this principle allows bothplanned and improvised modes, common Prolog implementations have all followed the first option,requiring the user to irrevocably terminate the query before showing the answer substitution. But, aswas shown in [7], the spreadsheet user interface allows logic programming to be used in improvisedmode. In this paper we show that the potential of logic programming for the improvised, exploratory mode of computer use is not exhausted by the spreadsheet interface. In addition, tables are a medium suitable