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.

Ex Input:
Passage: The minimum wage, public-sector wages, and old-age pensions are routinely raised twice a year to ensure that base income is not eroded by inflation. Although no statistics are published on average wages in Uzbekistan, pensions as a proxy for the average wage increased significantly between 1995 and 2006, both in real terms and in U.S. dollars. The monthly old-age pension increased in real (CPI-adjusted) sums by almost a factor of 5 between 1995 and 2006. The monthly pension in U.S. dollars was around $20–$25 until 2000, then dropped to $15–$20 between 2001 and 2004, and now is $64. The minimum wage was raised to $34.31 in November 2011. Assuming that the average wages in the country are at a level of 3-4 times the monthly pension, we estimate the wages in 2006 at $100–$250 per month, or $3–$8 per day. 
Question: How many years did it take for pensions to increase by a factor of almost 5? 
Answer type: Number 

Ex Output:
11.


Ex Input:
Passage: Salks vaccine was then used in a test called the Francis Field Trial, led by Thomas Francis, Jr., the largest medical experiment in history at that time. The test began with about 4,000 children at Franklin Sherman Elementary School in McLean, Virginia, and eventually involved 1.8 million children, in 44 states from Maine to California. By the conclusion of the study, roughly 440,000 received one or more injections of the vaccine, about 210,000 children received a placebo, consisting of harmless culture media, and 1.2 million children received no vaccination and served as a control group, who would then be observed to see if any contracted polio. The results of the field trial were announced 12 April 1955 (the tenth anniversary of the death of President Franklin D. Roosevelt, whose Franklin D. Roosevelts paralytic illness was generally believed to have been caused by polio). The Salk vaccine had been 60-70% effective against PV1 (poliovirus type 1), over 90% effective against PV2 and PV3, and 94% effective against the development of bulbar polio. Soon after Salks vaccine was licensed in 1955, childrens vaccination campaigns were launched. In the U.S, following a mass immunization campaign promoted by the March of Dimes, the annual number of polio cases fell from 35,000 in 1953 to 5,600 by 1957. By 1961 only 161 cases were recorded in the United States. 
Question: How many states chose not to particpate in the Salks vaccine? 
Answer type: Number 

Ex Output:
6.


Ex Input:
Passage: Hoping to rebound from their loss to the Colts, the Broncos traveled to Nashville to face the Tennessee Titans at LP Field. After a scoreless first quarter, the Broncos took the lead in the second quarter, as quarterback Kyle Orton threw a 2-yard touchdown pass to wide receiver Eddie Royal. The Titans responded, with quarterback Vince Young throwing an 8-yard touchdown pass to wide receiver Kenny Britt. The Broncos would retake the lead, with a 36-yard field goal by placekicker Matt Prater, but The Titans replied, when placekicker Rob Bironas nailed an incredible 55-yard field goal just before halftime. In the third quarter, the Broncos took the lead again, with another 36-yard field goal by Prater, but Titans' wide receiver Marc Mariani returned the ensuing kickoff 98 yards for a touchdown, putting Tennessee ahead 17-13. Tennessee's lead was narrowed, with a 35-yard field goal by Prater, but was increased again with a 46-yard field goal by Bironas. In the fourth quarter, the Broncos pulled ahead, when Orton completed a 6-yard touchdown pass to running back Correll Buckhalter. After the Titans fumbled the ensuing kickoff, the Broncos increased their lead with 28 seconds remaining, with a 36-yard field goal by Prater. The Broncos' defense thwarted the Titans' final desperation drive of the game. 
Question: How many more yards in made field goals did Matt Prater have compared to Rob Bironas? 
Answer type: Number 

Ex Output:

42.