He elicited the help of Mattis, along with ex-Google Reader team member Ben Darnell.

Entity and relation annotations:
id: 0
type: entity
value: text: Mattis
labels: <Person>
id: 1
type: entity
value: text: Ben Darnell
labels: <Person>
id: 2
type: entity
value: text: Google Reader
labels: <Production>
id: 3
type: entity
value: text: ex-Google Reader team member
labels: <Title>
type: relation
to_id: 3
labels: Person:holds_title:Title
from_id: 1