first two lines and last line rhyme
the 3rd and 4th lines rhyme
They consist roughly of 8 syllables for lines 1,2,and 5
and six syllables for lines 3 and 4.
It sounds tougher than it is, you really have to hear one to know how they sound. The syllable count is more relaxed for these, you can fudge as long as it still has the basic rhythem