Third, the user places his non-dominant index finger in the <e1>pin</e1> of the <e2>grenade</e2> while maintaining a firm grasp on the body of the grenade.
Third, the user places
Third, the user places his non-dominant index finger in the pin of the grenade while maintaining a firm grasp on the body of the grenade.
<triplet> pin <subject> grenade <object> Component-Whole(e1,e2)