Persons may anticipate trouble.Logical formLearned from15 sentences. Persons may face troubles.Logical formLearned from15 sentences. Trouble can be with knees.Logical formLearned from15 sentences. A world-city may bring troubles.Logical formLearned from15 sentences. A response can be to signs of trouble.Logical formLearned from15 sentences. Trouble may get a tube.Logical formLearned from15 sentences. Troubles can be repeated.Logical formLearned from15 sentences. Trouble may put food on a table.Logical formLearned from15 sentences. Involvement can be in troubles.Logical formLearned from15 sentences. Divers may have trouble.Logical formLearned from15 sentences. Troubles can be clear.Logical formLearned from15 sentences. Trouble can be obvious.Logical formLearned from15 sentences. A recurrence may pertain-to trouble.Logical formLearned from15 sentences. Trouble may mean trouble.Logical formLearned from15 sentences. Trouble may advance.Logical formLearned from15 sentences.