videos

{
	videoId : <String>
	channelId : <Stirng> // channelId
	thumbnails : <String> 
	title : <String> // 로제 떡볶이를 만들어 보아요!
	channelTitle : <String> // 백종원의 요리비책
	subscriberCount : <int> // 5145
	viewCount : <int> // 1360
	likeCount : <int> // 140
	dislikeCount : <int> // 4
	commentCount : <int> // 40
	description: <Stirng>[] // 1. 물 붓기, 2. 어쩌고, 3. 완성!
}

ingredients

{
		ingredient : <String>
		videoIds : <String>[]
}

keyword

{
		keyWord : <String>
		videoIds : <String>[]
}

engagement

{
		videoId : <String>
		engagement : {}