Teacher:In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
Teacher: Now, understand the problem? Solve this instance: Context: It is used to repair defects that result in the physiology of hypoplastic left heart syndrome even though both ventricles are functioning normally Link Information: 95% of untreated infants with HLHS die in the first weeks of life.

Early survival has improved since the introduction of the Norwood procedure. Since there are no long-term studies of HLHS adults, statistics are usually derived from post-Fontan patients; it is estimated that 70% of HLHS patients may reach adulthood. Question: What are the effects of hypoplastic left heart syndrome?
Student:
Answer: 95% of untreated infants with HLHS die in the first weeks of life