Which pair of lines from T. S. Elliot's "Rhapsody on a Windy Night" is an example of onomatopoeia?

Onomatopoeia is a figure of speech that refers to words imitating sounds. In the poem of T. S. Elliot, "Rhapsody on a Windy Night," these are lines that shows an example of onomatopoeia:

"The street lamp sputtered,/The street lamp muttered,/The street lamp said ..."

"The lamp sputtered,/The lamp hummed,/The lamp said ..."