To remember which of the 12 cranial nerves of the human body are sensory, motor or both. Remember the sentence:
'Some Say Money Matters But My Brother Says Big Books Matter Most'
So the first word Some starts with a S indicates the 1st cranial nerve is Sensory. Similarly M stands for Motor and B stands for Both.
Ref: https://www.medicalmnemonics.info/index.php/5/how-to-remember-the-12-carnal-nerves-are-sensory-motor-or-both