(Resource bases) can be narrow.Logical formLearned from15 sentences. A (tax base) may undergo a definition.Logical formLearned from15 sentences. A base may undergo an extension.Logical formLearned from15 sentences. A person may establish a base.Logical formLearned from15 sentences. A visit can be to an (air force base).Logical formLearned from15 sentences. A base may pertain-to a figure.Logical formLearned from15 sentences. (Sanitation problems) can be at a base.Logical formLearned from15 sentences. A south island may house military bases.Logical formLearned from15 sentences. A female may say from a base.Logical formLearned from15 sentences. An (air base) can be in a capital.Logical formLearned from15 sentences. A (forward base) may pertain-to a government-agency.Logical formLearned from15 sentences. A country may host an (air base).Logical formLearned from15 sentences. A (suicide bomber) may strike a military base.Logical formLearned from15 sentences. A base can be for strategic bombers.Logical formLearned from15 sentences. A base may undergo operations.Logical formLearned from15 sentences.