What are these for?

620848

{"text":"Does anyone know? :p  ","videos":"[]","pics":"[{\"description\":\"\",\"height\":1080.0,\"name\":\"13448/5_1553806593_1553806594.jpg\",\"url\":\"\",\"width\":1920.0}]","canComment":true}

289718

{"replyTo":"","text":"coat hanger","replyToPid":0}

289718

{"replyTo":"

616778 发表于 2019-03-28 21:12:50 headers for your engine

","text":"oh they are lol","replyToPid":6511}

613121

{"replyTo":"

544240 发表于 2019-03-28 22:33:06 A straw for one of them keg cups, you get at the truck stop

","text":"😂🤣😅","replyToPid":6563}

544240

{"replyTo":"

289718 发表于 2019-03-28 21:10:41 coat hanger

","text":"😂","replyToPid":6510}

544240

{"replyTo":"","text":"A straw for one of them keg cups, you get at the truck stop ","replyToPid":0}

630524

{"replyTo":"

289718 发表于 2019-03-28 21:10:41 coat hanger

","text":"😂😂😂","replyToPid":6510}

616778

{"replyTo":"

289718 发表于 2019-03-28 21:10:41 coat hanger

","text":"headers for your engine","replyToPid":6510}

630524

{"replyTo":"","text":"for going fast","replyToPid":0}

289718

{"replyTo":"","text":"to look pretty","replyToPid":0}

614490

{"replyTo":"

630524 发表于 2019-03-28 21:42:29 😂😂😂

","text":"hahahaha","replyToPid":6523}

497749

{"replyTo":"","text":"Headers!!! For Semi?","replyToPid":0}