TASK DEFINITION: Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
PROBLEM: The Battle of Adwa (also known as Adowa, or sometimes by the Italian name Adua) was fought on 1 March 1896 between the Ethiopian Empire and the Kingdom of Italy near the town of Adwa, Ethiopia, in Tigray.

SOLUTION: The point in time of Battle of Adwa was when?

PROBLEM: Contrary to earlier beliefs, viruses are not the smallest causative agents of infectious diseases. Single-stranded RNAs as small as 246 nucleotides exist in certain higher plants and cause more than a dozen crop diseases. These RNAs have been termed viroids. Despite their extremely limited information content, viroids replicate autonomously in susceptible cells--that is, they do not require helper functions from simultaneously replicating conventional viruses. Viroids are covalently closed circular molecules with a characteristic rodlike secondary structure in which short helical regions are interrupted by internal and bulge loops. Viroids are not translated; they are replicated by a host enzyme (or enzymes) (probably RNA polymerase II) via oligomeric RNA intermediates by a rolling circle mechanism. Viroidlike satellite RNAs resemble viroids in size and molecular structure, but are found within the capsids of specific helper viruses on which they depend for their own replication. These RNAs are of great interest to molecular biology for at least two reasons: 1) they are the smallest and simplest replicating molecules known, and 2) they may represent living fossils of precellular evolution in a hypothetical RNA world.

SOLUTION: Which are the smallest known subviral pathogens of plants?

PROBLEM: KazSat-3 (Kazakh: -3) is a telecommunications satellite which was launched 28 April 2014 at 10:25 GMT Astana Time from Cosmodrome Baikonur in Kazakhstan.

SOLUTION:
On what date was KazSat-3 launched?