Complex sentence: She is the only child of a single parent, Desiree Grace Orais and she has never met her father.She had an open heart surgery in 2010 due to cystic teratoma.
Split into simpler sentences: She is the only child of her mother, Desiree Grace Orais and has never met her father. In 2010 she had an open heart surgery due to cystic teratoma.