for those that don't understand:
-read(reading a book) and lead(as in leader) rhyme
-read(past tense of read) and lead(in pencils) rhyme
-read(reading book) and lead(in pencils) don't rhyme
-read(past tense of read) and lead(and in leader) also don't rhyme
-read(reading a book) and lead(as in leader) rhyme
-read(past tense of read) and lead(in pencils) rhyme
-read(reading book) and lead(in pencils) don't rhyme
-read(past tense of read) and lead(and in leader) also don't rhyme