Bonds may be issued by (mortgage associations).Logical formLearned from13 sentences. Associations can be important.Logical formLearned from13 sentences. An association can be between variables.Logical formLearned from13 sentences. An association can be with students.Logical formLearned from13 sentences. An association can be between conflict.Logical formLearned from13 sentences. Private schools may undergo an association.Logical formLearned from13 sentences. Association may undergo an analysis.Logical formLearned from13 sentences. Some studies may report associations.Logical formLearned from13 sentences. Association can be with drug.Logical formLearned from13 sentences. An association can be at a school.Logical formLearned from13 sentences. Pilots may undergo an association.Logical formLearned from13 sentences. An association can be with proteins.Logical formLearned from13 sentences. An (education association) may pertain-to a nation.Logical formLearned from13 sentences. An association may pertain-to a worker.Logical formLearned from13 sentences. A survey may be conducted by an association.Logical formLearned from13 sentences.