Complex sentence: Her aunt allegedly warned school officials in August 2009, prior to Prince's enrollment at the school, to watch after Prince, as she was "susceptible" to bullying and was both bullied and a participant in bullying others in Ireland.
Split into simpler sentences: Her aunt allegedly warned school officials in August 2009, prior to Prince's enrollment at the school, to watch after Prince, as she was "susceptible" to bullying. Moore told the school that Prince was both bullied and a participant in bullying others in Ireland.