type set = "A" | "B";
type person = "1" | "2" | "3";
type gram_number = "sg" | "du" | "pl";
type transitivity = "intransitive" | "transitive";
type animacy = "inanimate" | "animate";
interface PrenominalPrefix {
  set: set;
  person: person;
  gram_numnber: gram_number;
  transitivity: transitivity;
  subjectAnimacy: animacy;
  objectAnimacy?: animacy;
  form: string;
  romanization: string;
  gloss: string;
}