Extremists may use terror.Logical formLearned from12 sentences. A name may strike terror.Logical formLearned from12 sentences. Operations may pertain-to a (terror group).Logical formLearned from12 sentences. A country may arrest some (terror suspects).Logical formLearned from12 sentences. A hierarchy may pertain-to a (terror group).Logical formLearned from12 sentences. A (terror group) may pertain-to al-zarqawi.Logical formLearned from12 sentences. Links can be to (terror mastermind).Logical formLearned from12 sentences. (Terror threats) can be islamic.Logical formLearned from12 sentences. A rash can be constituted-of-or-filled-with (terror attacks).Logical formLearned from12 sentences. Work may pertain-to a (terror group).Logical formLearned from12 sentences. (Terror suspects) may be arrested.Logical formLearned from12 sentences. A (terror group) can be reactionary.Logical formLearned from12 sentences. A (terror group) may reach a conclusion.Logical formLearned from12 sentences. Some persons may be killed in (train terror bombings).Logical formLearned from12 sentences. (Law enforcement agencies) can be aware of links to a (terror network).Logical formLearned from12 sentences.