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Humpty Dumpty sits on a wall every day while having launch. The wall sometimes breaks. A person sitting on the wall falls if the wall breaks.

Which one of the statements below is logically valid and can be inferred from the above sentences?

  1. Humpty Dumpty always falls while having lunch
  2. Humpty Dumpty does not fall sometimes while having lunch
  3. Humpty Dumpty never falls during dinner
  4. When Humpty Dumpty does not sit on the wall, the wall does not break
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