Some invasions can be devastating.Logical formLearned from12 sentences. (Cafeteria ladies) may undergo an invasion.Logical formLearned from12 sentences. A country can be safe from invasion.Logical formLearned from12 sentences. An event can be an invasion of a country.Logical formLearned from12 sentences. Nations may undergo invasions.Logical formLearned from12 sentences. An invasion may undergo ramifications.Logical formLearned from12 sentences. Invasion can be by plants.Logical formLearned from12 sentences. A country can be before an invasion.Logical formLearned from12 sentences. Weeks can be before an invasion.Logical formLearned from12 sentences. A US-president may defend an invasion of a country.Logical formLearned from12 sentences. A US-president may order an invasion.Logical formLearned from12 sentences. An invasion can be by forces.Logical formLearned from12 sentences. Reasons can be behind an invasion.Logical formLearned from12 sentences. An invasion can be in spring.Logical formLearned from12 sentences. Towns may undergo an invasion.Logical formLearned from12 sentences.