A tool for breaking and opening an egg comprises first and second complementary concave egg-receiving container members pivoted to one another at a first axis, and first and second concave egg-confining members each pivoted to one of the complementary concave egg-receiving container members at a respective axis parallel to the first axis. Embodiments of the present claimed invention utilize video imaging to analyze the availability of parking spaces. Detail objects corresponding to the descriptive nodes are then constructed and used by a rendering engine to render the visual interface elements of the declarative application. Delivery of targeted electronic content to the subscriber for presentation with electronic content accessed by the subscriber is controlled based on the behavioral profile. The combined stream can have an isopentane:naphtha mass ratio of about 0.