instruction:
This task involves creating answers to complex questions, from a given passage. Answering these questions, typically involve understanding multiple sentences. Make sure that your answer has the same type as the "answer type" mentioned in input. The provided "answer type" can be of any of the following types: "span", "date", "number". A "span" answer is a continuous phrase taken directly from the passage or question. You can directly copy-paste the text from the passage or the question for span type answers. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words. A "number" type answer can include a digit specifying an actual value. For "date" type answers, use DD MM YYYY format e.g. 11 Jan 1992. If full date is not available in the passage you can write partial date such as 1992 or Jan 1992. If you find multiple spans, please add them all as a comma separated list. Please restrict each span to five words.
question:
Passage: The exact origin of the 260-day count is not known, but there are several theories. One theory is that the calendar came from mathematical operations based on the numbers thirteen and twenty, which were important numbers to the Maya. The numbers multiplied together equal 260. Another theory is that the 260-day period came from the length of human pregnancy. This is close to the average number of days between the first missed menstrual period and birth, unlike Naegele's rule which is 40 weeks  between the last menstrual period and birth. It is postulated that midwives originally developed the calendar to predict babies' expected birth dates. A third theory comes from understanding of astronomy, geography and paleontology.  The mesoamerican calendar probably originated with the Olmecs, and a settlement existed at Izapa, in southeast Chiapas Mexico, before 1200 BCE. There, at a latitude of about 15° N, the Sun passes through zenith twice a year, and there are 260 days between zenithal passages, and gnomons , were found at this and other sites. The sacred almanac may well have been set in motion on August 13, 1359 BCE, in Izapa. 
Question: How many subjects comprise the third theory? 
Answer type: Number 
answer:
3.


question:
Passage: This drop was caused by a combination of sharply lower petroleum prices in world markets and voluntary production cuts in Brunei. The GDP recovered somewhat since 1986, growing by 12% in 1987, 1% in 1988, and 9% in 1989. In recent years, GDP growth was 3.5% in 1996, 4.0% in 1997, 1.0% in 1998, and an estimated 2.5% in 1999. However, the 1999 GDP was still only about $4.5 billion, well below the 1980 peak. 
Question: Was GDP growth smaller in 1989 or 1987? 
Answer type: Date 
answer:
{'day': '', 'month': '', 'year': '1989'}.


question:
Passage: As of the 2010 U.S. Census, there were 113,934 people, 20,502 families, and 47,060 households residing in the city. The population density was 4,093.9 people per square mile (1,580.7/km²), making it less densely populated than Detroit proper and its inner-ring suburbs like Oak Park, Michigan and Ferndale, Michigan, but more densely populated than outer-ring suburbs like Livonia, Michigan and Troy, Michigan. The racial makeup of the city was 73.0% White (U.S. Census) (70.4% non-Hispanic White), 7.7% Race and ethnicity in the United States Census, 0.3% Race and ethnicity in the United States Census, 14.4% Race and ethnicity in the United States Census, 0.0%  Race and ethnicity in the United States Census, 1.0% from Race and ethnicity in the United States Census, and 3.6% from two or more races. Race and ethnicity in the United States Census or Race and ethnicity in the United States Census residents of any race made up 4.1% of the population. Ann Arbor has a small population of Arab Americans, including  students as well as local Lebanese Americans and Palestinian Americans. 
Question: How many people, households, and families are in the city according to the census? 
Answer type: Number 
answer:

181496.