848
In a family with three siblings , one developed classical late infantile metachromatic leukodystrophy ( MLD ) , fatal at age 5 years , with deficient arylsulfatase A ( ARSA ) activity and increased galactosylsulfatide ( GS ) excretion .
 Disease: metachromatic leukodystrophy; Disease: MLD
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 Disease: metachromatic leukodystrophy; Disease: MLD