An (observer mission) may pertain-to a planet.Logical formLearned from21 sentences. Observers may realize that something-is-the-case.Logical formLearned from21 sentences. Thousands can be constituted-of-or-filled-with (election observers).Logical formLearned from21 sentences. Head may pertain-to an (observer group).Logical formLearned from21 sentences. Persons can be as observers.Logical formLearned from21 sentences. An observer may think.Logical formLearned from21 sentences. An observer can be reasonable.Logical formLearned from21 sentences. Some observers may remark that something-is-the-case.Logical formLearned from21 sentences. Observers can be at a meeting.Logical formLearned from21 sentences. Members may pertain-to an (observer mission).Logical formLearned from21 sentences. A consensus can be among observers.Logical formLearned from21 sentences. Observers may monitor polls.Logical formLearned from21 sentences. Some countries may have (observer status).Logical formLearned from21 sentences. A move may be seen by observers.Logical formLearned from21 sentences. An (observer force) can be unarmed.Logical formLearned from21 sentences.