A power take off system for a hybrid-electric vehicle comprises an internal combustion engine, a hybrid-electric motor and generator, a power take off mechanism, a hybrid control module, and an engaging mechanism. The phenoxy-acetic acids are activators of PPAR-\u03b4 and should be useful for treating conditions mediated by the same. In addition, by providing a reflection portion in the cavity, light emitted from the light emitting element can be efficiently condensed. Based on the number of occurrences of individual data elements and the dependence ratios, subordinate relations of data elements within the same group are specified and displayed to a user in the form of a tree or balloon figure.