Task: Place the tweet into a specific intensity class, reflecting the intensity of the mentioned emotion E and the user's mental state. 0: no E can be inferred. 1: low amount of E can be inferred. 2: moderate amount of E can be inferred. 3: high amount of E can be inferred.
Tweet: 3years today marks the anniversary of that horrid Westgate Attack in Nairobi. My heart out to all those of us who lost our family &amp; friends🕯
Emotion: fear
Intensity class: 