If there is a strong electron or a field around the instrument, then the instrument can detect all the fields and will beep. The presence of a strong electron results in the presence of at least one field. When there is only a strong electron around the instrument, the instrument will not beep Naruto. Now that the instrument is not beeping, it can be launched accordingly. ['The instrument does not detect the presence of all fields.', 'Only strong electrons exist around the instrument.', 'No strong electrons around the instrument.', 'The presence of a strong electron does not necessarily cause a field-effect.']