An observer may pertain-to a US-president.Logical formLearned from10 sentences. (Election observers) can be from countries.Logical formLearned from10 sentences. An observer can be concerned.Logical formLearned from10 sentences. Some observers may find that something-is-the-case.Logical formLearned from10 sentences. Observers may describe a male.Logical formLearned from10 sentences. Presence may pertain-to observers.Logical formLearned from10 sentences. Observers may suggest reasons.Logical formLearned from10 sentences. Some observers can be surprised.Logical formLearned from10 sentences. Some (industry observers) may speculate.Logical formLearned from10 sentences. Observers may learn a magnitude.Logical formLearned from10 sentences. An observer may remark that something-is-the-case.Logical formLearned from10 sentences. Observers may pertain-to an election.Logical formLearned from10 sentences. Planetary observers may see markings on a planet.Logical formLearned from10 sentences. Observers may be superimposed.Logical formLearned from10 sentences. Observers can be on some sides of a border.Logical formLearned from10 sentences.