He is a close friend, aide and adviser to senior Fatah leader Marwan Barghouti.

Entity and relation annotations:
id: 0
type: entity
value: text: Marwan Barghouti
labels: <Person>
id: 1
type: entity
value: text: Fatah
labels: <Organization>
id: 2
type: entity
value: text: leader
labels: <Title>
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labels: Person:leads_NORP:Organization
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type: relation
to_id: 2
labels: Organization:Establishes:Title
from_id: 1
type: relation
to_id: 2
labels: Person:holds_title:Title
from_id: 0