Fees can be applicable to (site operators).Logical formLearned from11 sentences. Operators may be required.Logical formLearned from11 sentences. An operator can be powerful.Logical formLearned from11 sentences. Operators may pertain-to machines.Logical formLearned from11 sentences. An operator may demonstrate.Logical formLearned from11 sentences. An operator may have a capability.Logical formLearned from11 sentences. A burden can be on operators.Logical formLearned from11 sentences. An operator may be issued.Logical formLearned from11 sentences. Operators can be across the world.Logical formLearned from11 sentences. A chair may pertain-to an operator.Logical formLearned from11 sentences. Classes can be constituted-of-or-filled-with operators.Logical formLearned from11 sentences. A cab may pertain-to an operator.Logical formLearned from11 sentences. Operator may affect a word.Logical formLearned from11 sentences. An operator may be connected.Logical formLearned from11 sentences. Operators can be errant.Logical formLearned from11 sentences.