Values.KeyPhraseSourceDescribes a key noun phrase.
type nonrec t = {score : Float_.t option;The level of confidence that Amazon Comprehend has in the accuracy of the detection.
*)text : String_.t option;The text of a key noun phrase.
*)beginOffset : Integer.t option;The zero-based offset from the beginning of the source text to the first character in the key phrase.
*)endOffset : Integer.t option;The zero-based offset from the beginning of the source text to the last character in the key phrase.
*)}