Half may be buried in sands.Logical formLearned from3 sentences. National heroes may be buried.Logical formLearned from3 sentences. (Chemical precursors) may be buried.Logical formLearned from3 sentences. A fence may be buried.Logical formLearned from3 sentences. Persons may bury a treasure.Logical formLearned from3 sentences. A female may bury the past.Logical formLearned from3 sentences. Some skulls may be found be buried in a (back garden).Logical formLearned from3 sentences. A male may bury a knee.Logical formLearned from3 sentences. A true cross may be buried.Logical formLearned from3 sentences. A person may be buried in research.Logical formLearned from3 sentences. A city may be buried in ice.Logical formLearned from3 sentences. Some soldiers may be buried in a mass grave.Logical formLearned from3 sentences. Ruins may be buried.Logical formLearned from3 sentences. A part of a male may be buried in a grave.Logical formLearned from3 sentences. A tumor may be buried.Logical formLearned from3 sentences.