This requires a more interpretative and conceptual orientation to the data. The study of Revelation is usually divided into four interpretative methodologies or hermeneutics. Sedimentary facies are either descriptive or interpretative. To Geertz, analysis separated observation from interpretative methodologies. Likewise aesthetic judgments seem often to be at least partly intellectual and interpretative. Flesch concentrated on his musical and interpretative development rather than technical skills. Three primary interpretative frameworks exist, with many subcategories. By virtue of those interpretative connections, the network can function as a scientific theory. Beckett was not open to most interpretative approaches to his work. Possibly those who bought texts supplied their own interpretative markings. One possible interpretative approach is to read the novel autobiographically. By contrast, knowledge is interpretative and predictive. The site of his first house in Duxbury is preserved and marked with interpretative signage. His performances of these compositions have often been hailed as models of interpretative penetration. This interpretative capacity is one aspect of graphicacy.