(Radiocarbon datings) can be constituted-of-or-filled-with biological materials.Logical formLearned from2 sentences. Systems may undergo datings.Logical formLearned from2 sentences. Carbon may undergo datings.Logical formLearned from2 sentences. Datings may assign sequences to absolute dates.Logical formLearned from2 sentences. (Carbon datings) may pertain-to shells.Logical formLearned from2 sentences. Evidence can be for datings.Logical formLearned from2 sentences. Datings of materials may put a time of an advance.Logical formLearned from2 sentences. Datings can be successful.Logical formLearned from2 sentences. Persons may define datings.Logical formLearned from2 sentences. Datings can be continued.Logical formLearned from2 sentences. Datings can be popular.Logical formLearned from2 sentences. Terms can be with datings.Logical formLearned from2 sentences. Datings can be (search problem).Logical formLearned from2 sentences. (Carbon datings) can be reliable.Logical formLearned from2 sentences. Datings can be a situation.Logical formLearned from2 sentences.