Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

Input: Consider Input: The Linth (pronounced (lnt) ''lint'') is a Swiss river that rises near the village of Linthal in the mountains of the canton of Glarus, and eventually flows into the Obersee section of Lake Zurich.

Output: What river does Linth turn into?


Input: Consider Input: Fafhrd and the Gray Mouser are two sword-and-sorcery heroes appearing in stories written by American author Fritz Leiber.

Output: Who is the author of Fafhrd and the Gray Mouser?


Input: Consider Input: Chediak Higashi syndrome (CHS) is an autosomal-recessive disorder characterized by oculocutaneous albinism, recurrent infections and a progressive primary neurological disease. Here, we describe two siblings with CHS due to a novel homozygous R1836X mutation in the LYST gene associated with loss of NK cell degranulation and cytotoxicity. While one sibling was born with fair skin and hair and died of hemophagocytic lymphohistiocytosis (HLH) at 5 months of age, the other sibling had dark black hair and skin and developed HLH at the age of 4 years.


Output: Which syndrome is associated with mutations in the LYST gene?