Learner Model Oriented Intelligent Learning and Business Support System.

A method of removing undesirable organic matter, such as food soil, paint, or the like, comprises contacting the organic matter with imidazole, pyrazole, an alkyl or aryl substituted imidazole, an alkyl or aryl substituted pyrazole, or a mixture of two or more thereof. Compositions containing these compounds as the active ingredient are also disclosed.