odel. 6.2 Classify each of the following as either a model, not a model, or sometimes a m Justify your answer on the basis of the definition and properties of a model. a) A diagram of a subway systenm b) A computer program c) A football play d) A driver's license A floor plan of the local shopping mall (a "you are here" diagram) f) An equation 8) A scratch 'n' sniff perfume advertisement in a fashion magazine h) The 1812 Overture i) A braille sign reading "second floor" j) Sheet music for the Brandenburg Concerto k) The United States Constitution 1) A set of car keys m) The ASCII encoding of an email message e)