Answer:
The last word in lines 2 and 4 (in this case, "sweet" and "feet") rhyme.
Step-by-step explanation:
In the Ballad of Birmingham, the author creates a pattern of ABCB, where only the second and fourth lines rhyme. The first and third lines do not rhyme. Almost all of the rhymes are end-rhymes - a rhyme of the terminal syllables of lines of poetry.
Hope this helps as well!(: