contextAnnotations

@SerializedName(value = "context_annotations")
var contextAnnotations: ArrayList<Tweet.ContextAnnotations>? = null

Contains context annotations for the Tweet.

e.g.

{
"context_annotations":[
{
"domain":{
"id":"45",
"name":"Brand Vertical",
"description":"Top level entities that describe a Brands industry"
}
},
{
"domain":{
"id":"46",
"name":"Brand Category",
"description":"Categories within Brand Verticals that narrow down the scope of Brands"
},
"entity":{
id":"781974596752842752",
"name":"Services"
}
},
{
"domain":{
"id":"47",
"name":"Brand",
"description":"Brands and Companies"
},
"entity":{
"id":"10045225402",
"name":"Twitter"
}
}
]
}

Entity recognition/extraction, topical analysis