passage: Islamabad, Pakistan (CNN) -- The 24-year-old son of the late Benazir Bhutto, groomed to take the reins of power in Pakistan, came of age politically Thursday, exactly five years after the assassination of his mother. Bilawal Bhutto-Zardari flexed his tender political muscles at a rally with his father, Pakistani President Asif Ali Zardari, near the family home in Sindh province ahead of next year's elections. He delivered a political stump speech acknowledging problems in Pakistan, such as the devastation caused by floods. He also slammed the terror that led to his mother's killing and asked why there have been no convictions for the crime.
  @highlight
  NEW: Kill a Bhutto and another will emerge, the young Bhutto-Zardari said
  @highlight
  NEW: Pakistani President Asif Zardari says his son's training has begun
  @highlight
  Benazir Bhutto was killed five years ago in a gun-suicide bomb attack
  @highlight
  Thousands gathered near the home to mark the fifth anniversary of her death
query: They will sew our lips, but we will chant, 'Long live @placeholder.'
entities: Asif Ali Zardari Asif Zardari Benazir Bhutto Bhutto Bhutto-Zardari Bilawal Bhutto-Zardari CNN Islamabad Pakistan Pakistani Sindh province