An electronic price label system with automatic assignment of an ESL to an appropriate CBS and timeslot is described. Mechanical steps are performed under substantially atmospheric conditions thereby simplifying liquid crystal cell assembly. A wicking material is arranged in the cavity between the housing and the electronic device. The monomolecular carbon-based film decreases air friction and increased lift of a modified aircraft that includes an aircraft part treated with the film. The labeled training data is automatically generated by separating at least some of the positive candidate query data from the remaining positive candidate query data based upon the negative query data.