Hey there,

I am a German student of the English language, currently working on a Linguistics assignment.
We received a text, which is actually a tongue twister, and our task is to identify all the lexemes. The term 'back' appears twice with different meanings: first as the physiological 'back of the body' and second in the form of 'biting someone back'. Are these two different lexemes?

Two more words, about which I am not sure, are 'him' and 'his'. Are these two independent lexemes or do they both belong to the lexeme 'HE'?

Thank you so much for your help!