Menaker was identified by Arlington Hall cryptographers in sixteen Venona messages.

Entity and relation annotations:
id: 0
type: entity
value: text: Menaker
labels: <Person>
id: 1
type: entity
value: text: Arlington Hall
labels: <Organization>
id: 2
type: entity
value: text: cryptographers
labels: <Title>
type: relation
to_id: 2
labels: Organization:Establishes:Title
from_id: 1