A context aware system and a context aware method thereof perform a reasoning to be aware of contexts in ubiquitous environments. The composition may be prepared by blending a latex containing crystalline submicron fluoropolymer particles with a latex containing less crystalline or amorphous fluororesin particles, coagulating and drying the blended latices, and dissolving the dried blend in a solvent for the fluororesin particles. The width of the rollers between their side faces is at least 70% of the diameter of the spherical base shape and is greater than the distance between the axial rims. In an alternative embodiment, the hitch includes a receiver portion having an integral ball mount. Each lever arm is formed with a slot for engaging a blade locking tab joined to a cover for the handle. The systems and methods comprise a platform independent environment and a platform dependent environment that is accessible to the platform independent environment.