Assertion: writer's writing | /r/CapableOf | serve to introduce the reader
Facets:
value: to the author
type: TRANSITIVE-OBJECT
value: to the book
type: TRANSITIVE-OBJECT
Source sentences:
text: A foreword is a piece of writing that serves to introduce the reader to the author and the book, usually written by someone who is not the author or an editor of the book.