In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.

Passage: Columbia, formerly Wright's Ferry, is a borough (town) in Lancaster County, Pennsylvania, 28 miles (45 km) southeast of Harrisburg on the east (left) bank of the Susquehanna River, across from Wrightsville and York County and just south of U.S. Route 30. The settlement was founded in 1726 by Colonial English Quakers from Chester County led by entrepreneur and evangelist John Wright. Establishment of the eponymous Wright's Ferry, the first commercial Susquehanna crossing in the region, inflamed territorial conflict with neighboring Maryland but brought growth and prosperity to the small town, which was just a few votes shy of becoming the new United States' capital. Though besieged for a short while by Civil War destruction, Columbia remained a lively center of transport and industry throughout the 19th century, once serving as a terminus of the Pennsylvania Canal. Later, however, the Great Depression and 20th-century changes in economy and technology sent the borough into decline. It is notable today as the site of one of the world's few museums devoted entirely to horology.
 Link Information: As of the 2010 census, the population was 519,445. Question: What is the current population of the county where Columbia, PA is located?
Answer: 519,445

Passage: Somuncu Baba is one of the virtuous men who came to Anadolu for spiritual conquest, he was also a descendant of Islamic prophet Muhammad After receiving an education in cities which are the center of knowledge like Şam, Tabriz, Erdebil, he settled in Bursa for his guidance and duty. He taught at the Bursa Grand Mosque where he was installed by Sultan Bayezid I after it was completed. For hiding his spiritual side, he baked bread and sold them so he was known as Somuncu Baba. He became known after he had translated the sura of Al-Fatiha, in seven different ways during the opening of Bursa Grand Mosque, in Bursa. He avoided becoming famous so he left Bursa and moved Aksaray. He left his son Yusuf Hakiki Baba in Aksaray and he went to Mecca with his son Halil Taybi when they got back to Anadolu they settled in Darende and he died here in 1412. His tomb is still in Darende.
 Link Information: none Question: How many years passed between the opening of the Bursa Grand Mosque and Baba's death?
Answer: none

Passage: Bouguer, La Condamine, Godin and their colleagues measured arcs of the Earth's curvature on the Equator from the plains near Quito to the southern city of Cuenca. These measurements enabled the first accurate determination of the shape of the Earth, eventually leading to the establishment of the international metric system of measurement. When an International Commission for Weights and Measures was convened in Paris to settle the true length of the metre, it adopted on 22 June 1799 a standard metre based on the length of the half meridian connecting the North pole with the Equator. The French Academy of Sciences had commissioned an expedition led by Jean Baptiste Joseph Delambre and Pierre Méchain, lasting from 1792 to 1799, which attempted to accurately measure the distance between a belfry in Dunkerque and Montjuïc castle in Barcelona at the longitude of Paris Panthéon. This portion of the Paris meridian was to serve as the basis for the length of the half meridian connecting the North Pole with the Equator. The metre was defined as the ten-millionth of the half meridian's length extrapolated from a Earth's flattening of 1/334 obtained from the results of the survey by Delambre and Méchain combined with those of the Peru meridian arc as established by La Condamine and his colleagues.
 Link Information: Jean Baptiste Joseph, chevalier Delambre (19 September 1749 – 19 August 1822) Question: Which astronomer who went on an expedition for the French Academy of Sciences was the oldest?

Answer: Pierre Méchain