|A small L serves as apostrophe|
|Phoenetics - they "coudin" put Humpty back together|
|Ronald was a farmer, you know|
Logically, "are" also contracted therefore into 're, as in "If you're happy." So he happily went and constructed those phrases, with or without an apostrophe.
Before I could explain possessives properly, however, he observed the Golden Arches all over town, and figured they meant "McDonald is." And since his favourite nursery rhyme, after Humpty Dumpty, is that of the farmer and his animals, he sometimes turns Ronald into a farmer. He always precedes this with the proper spelling of Old MacDonald, so I know he is aware that they aren't the same. So we need to get cracking with the next grammar lesson.