This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Ex Input:
Passage: Switzerland is one of the richest and wealthiest countries in the world. Switzerland ranks top or close to the top in several metrics of national performance, including government transparency, civil liberties, quality of life, economic competitiveness, and human development. It has the highest nominal wealth (financial and non-financial assets) per adult in the world according to Credit Suisse and the eighth-highest per capita gross domestic product on the IMF list. Zürich and Geneva have each been ranked among the top cities with the highest quality of life in the world, with the former ranked 2nd globally, according to Mercer. Question: What is Switzerland's ranking for per capita gross domestic product on the IMF list?

Ex Output:
eighth-highest


Ex Input:
Passage: There were 46,917 households, out of which 7,835 (16.7%) had children under the age of 18 living in them, 13,092 (27.9%) were opposite-sex married couples living together, 3,510 (7.5%) had a female householder with no husband present, 1,327 (2.8%) had a male householder with no wife present. There were 2,867 (6.1%) unmarried opposite-sex partnerships, and 416 (0.9%) same-sex married couples or partnerships. 22,716 households (48.4%) were made up of individuals and 5,551 (11.8%) had someone living alone who was 65 years of age or older. The average household size was 1.87. There were 17,929 families (38.2% of all households); the average family size was 2.79. Question: What percent of household have children under 18?

Ex Output:
16.7%


Ex Input:
Passage: Chen Qingying, Professor of History and Director of the History Studies Institute under the China Tibetology Research Center in Beijing, writes that the Ming court conferred new official positions on ex-Yuan Tibetan leaders of the Phachu Kargyu and granted them lower-ranking positions. Of the county (zong or dzong) leaders of Neiwo Zong and Renbam Zong, Chen states that when "the Emperor learned the actual situation of the Phachu Kargyu, the Ming court then appointed the main Zong leaders to be senior officers of the Senior Command of Dbus and Gtsang." The official posts that the Ming court established in Tibet, such as senior and junior commanders, offices of Qianhu (in charge of 1,000 households), and offices of Wanhu (in charge of 10,000 households), were all hereditary positions according to Chen, but he asserts that "the succession of some important posts still had to be approved by the emperor," while old imperial mandates had to be returned to the Ming court for renewal. Question: How many households were the offices of Wanhu in charge of?

Ex Output:

10,000 households