Teacher:Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
Teacher: Now, understand the problem? Solve this instance: 1225 Ariane, provisional designation 1930 HK, is a main-belt asteroid discovered on April 23, 1930, by Hendrik van Gent at the Leiden Southern Station, annex to the Johannesburg Observatory in South Africa.
Student:
What is the name of the person who discovered 1225 Ariane?