Input: Read this: Vocalization markers indicating specific vowel sounds were introduced into the Arabic language by the end of the 9th century. The first Quranic manuscripts lacked these marks, therefore several recitations remain acceptable. The variation in readings of the text permitted by the nature of the defective vocalization led to an increase in the number of readings during the 10th century. The 10th-century Muslim scholar from Baghdad, Ibn Mujāhid, is famous for establishing seven acceptable textual readings of the Quran. He studied various readings and their trustworthiness and chose seven 8th-century readers from the cities of Mecca, Medina, Kufa, Basra and Damascus. Ibn Mujahid did not explain why he chose seven readers, rather than six or ten, but this may be related to a prophetic tradition (Muhammad's saying) reporting that the Quran had been revealed in seven "ahruf" (meaning seven letters or modes). Today, the most popular readings are those transmitted by Ḥafṣ (d.796) and Warsh (d. 812) which are according to two of Ibn Mujahid's reciters, Aasim ibn Abi al-Najud (Kufa, d. 745) and Nafi‘ al-Madani (Medina, d. 785), respectively. The influential standard Quran of Cairo (1924) uses an elaborate system of modified vowel-signs and a set of additional symbols for minute details and is based on ʻAsim's recitation, the 8th-century recitation of Kufa. This edition has become the standard for modern printings of the Quran.
Question: Which city corresponds to Asim's recitation of the Quran?

Output: Kufa


Input: Read this: Accurate present day child labour information is difficult to obtain because of disagreements between data sources as to what constitutes child labour. In some countries, government policy contributes to this difficulty. For example, the overall extent of child labour in China is unclear due to the government categorizing child labour data as “highly secret”. China has enacted regulations to prevent child labour; still, the practice of child labour is reported to be a persistent problem within China, generally in agriculture and low-skill service sectors as well as small workshops and manufacturing enterprises.
In 2014, the U.S. Department of Labor issued a List of Goods Produced by Child Labor or Forced Labor where China was attributed 12 goods the majority of which were produced by both underage children and indentured labourers. The report listed electronics, garments, toys and coal among other goods.
Question: Where is present day child labour stats unclear?

Output: China


Input: Read this: On the interior of the building attached shafts often sweep unbroken from floor to ceiling and meet the ribs of the vault, like a tall tree spreading into branches. The verticals are generally repeated in the treatment of the windows and wall surfaces. In many Gothic churches, particularly in France, and in the Perpendicular period of English Gothic architecture, the treatment of vertical elements in gallery and window tracery creates a strongly unifying feature that counteracts the horizontal divisions of the interior structure.
Question: What is often found completely broken from floor to ceiling on the interior of Gothic buildings?

Output: unanswerable


Input: Read this: To clean up pollution, the federal and local governments implemented numerous plans including the constant monitoring and reporting of environmental conditions, such as ozone and nitrogen oxides. When the levels of these two pollutants reached critical levels, contingency actions were implemented which included closing factories, changing school hours, and extending the A day without a car program to two days of the week. The government also instituted industrial technology improvements, a strict biannual vehicle emission inspection and the reformulation of gasoline and diesel fuels. The introduction of Metrobús bus rapid transit and the Ecobici bike-sharing were among efforts to encourage alternate, greener forms of transportation.
Question: What is the bike-sharing program called in Mexico City?

Output:
Ecobici