A (telephone survey) can be valid.Logical formLearned from3 sentences. A (data frame) can be valid.Logical formLearned from3 sentences. Documents can be valid for a maximum of some months.Logical formLearned from3 sentences. A main point may remain valid.Logical formLearned from3 sentences. Individuals can be valid.Logical formLearned from3 sentences. A (c code) can be valid.Logical formLearned from3 sentences. A fine can be valid.Logical formLearned from3 sentences. A valid time may be supplied.Logical formLearned from3 sentences. A listing can be valid.Logical formLearned from3 sentences. Orientations can be valid.Logical formLearned from3 sentences. A (value pointer) may remain valid.Logical formLearned from3 sentences. A (metadata document) can be valid.Logical formLearned from3 sentences. A (time range) can be valid.Logical formLearned from3 sentences. Deliberations of an advisory-committee can be valid.Logical formLearned from3 sentences. A computer can be valid.Logical formLearned from3 sentences.