6. An inductive model has little tolerance to contradictory information above the noise threshold present at training; whereas, a deductive model is capable of weighing contradictory evidence and comparing it with priors derived from domain knowledge. For example, a violation of conservation of energy is cause to reject a datapoint. Similarly, several inputs that suggest the presence (or absence) of a carbonyl in an analyte must be weighed against the likelihood that the group can be present given starting material.