A person may hit a (repeat button).Logical formLearned from16 sentences. Buttons can be mysterious.Logical formLearned from16 sentences. Persons may push a (panic button).Logical formLearned from16 sentences. Buttons may be removed.Logical formLearned from15 sentences. A user may click a button.Logical formLearned from15 sentences. A (button press) can be simple.Logical formLearned from15 sentences. A button can be smart.Logical formLearned from15 sentences. A user may push a button.Logical formLearned from15 sentences. A button may be titled.Logical formLearned from15 sentences. (Radio buttons) may be used.Logical formLearned from15 sentences. A button can be on a top.Logical formLearned from15 sentences. A (mouse button) may be depressed.Logical formLearned from15 sentences. A user may click on a button.Logical formLearned from15 sentences. Buttons can be on a panel.Logical formLearned from15 sentences. A (modem click) can be on a button.Logical formLearned from15 sentences.