A son may be killed by a mortar.Logical formLearned from4 sentences. Some mortars can be at an airport.Logical formLearned from4 sentences. Insurgents may fire mortars from residential areas of a city.Logical formLearned from4 sentences. Militants may exchange mortar.Logical formLearned from4 sentences. A mortar can be from a fighting.Logical formLearned from4 sentences. Insurgents may battle troops with mortar.Logical formLearned from4 sentences. Mortars may strike about a kilometer.Logical formLearned from4 sentences. Factions may fire mortars.Logical formLearned from4 sentences. Gunmen may be armed with mortars.Logical formLearned from4 sentences. Some military camps may come under (rebel mortar fire).Logical formLearned from4 sentences. Islamic militants may fire mortars.Logical formLearned from4 sentences. An (intelligence service) may be attacked by mortars.Logical formLearned from4 sentences. Some sides can be (firing mortars).Logical formLearned from4 sentences. Mortars may be fired on a (police station).Logical formLearned from4 sentences. Mortars may be fired on outskirts of a town.Logical formLearned from4 sentences.