A (home number) may ring busy.Logical formLearned from2 sentences. Bells may ring for a silence.Logical formLearned from2 sentences. Calls to a (border police command) may ring unanswered.Logical formLearned from2 sentences. Lines may ring.Logical formLearned from2 sentences. A bell may be ringed at an entrance.Logical formLearned from2 sentences. Calls to a department of a (county government) may ring unanswered.Logical formLearned from2 sentences. (Security checkpoints) may ring a city.Logical formLearned from2 sentences. (Security force checkpoints) may ring a city.Logical formLearned from2 sentences. Calls to offices of an operator may ring unanswered.Logical formLearned from2 sentences. An incident may ring a (safety alarm bell).Logical formLearned from2 sentences. Calls to a (work safety administration) may ring unanswered.Logical formLearned from2 sentences. (Alarm bells) may ring in a nation.Logical formLearned from2 sentences. (Phone calls) to an owner may ring unanswered.Logical formLearned from2 sentences. (Shanty towns) may ring a city.Logical formLearned from2 sentences. A (death knell) may ring for capitalism.Logical formLearned from2 sentences.