Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

Input: Consider Input: Context: Elena Wexler-Kreindler (15 October 1931 -- August 2002) was a Romanian mathematician. 
 Question: The date of birth of Elena Wexler-Kreindler is?

Output: 15 october 1931


Input: Consider Input: Context: The human ETHE1 gene consists of 7 exons and encodes for a protein that is approximately 27 kDa in size. 
 Question: Which species has the ETHE1 gene?

Output: human


Input: Consider Input: Context: 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. 
 Question: Which syndrome is associated with mutations in the LYST gene?


Output: chediak higashi syndrome