Problem: Please answer a question about the following article about Mosaic:
Mosaic art also flourished in Christian Petra where three Byzantine churches were discovered. The most important one was uncovered in 1990. It is known that the walls were also covered with golden glass mosaics but only the floor panels survived as usual. The mosaic of the seasons in the southern aisle is from this first building period from the middle of the 5th century. In the first half of the 6th century the mosaics of the northern aisle and the eastern end of the southern aisle were installed. They depict native as well as exotic or mythological animals, and personifications of the Seasons, Ocean, Earth and Wisdom.
The scenes depicted on the mosaics were both native and what kind of mythological animals?
A: exotic
Problem: Please answer a question about the following article about Detroit:
On February 18, 2015, Canadian Transport Minister Lisa Raitt announced that Canada has agreed to pay the entire cost to build a $250 million U.S. Customs plaza adjacent to the planned new Detroit–Windsor bridge, now the Gordie Howe International Bridge. Canada had already planned to pay for 95 per cent of the bridge, which will cost $2.1 billion, and is expected to open in 2020. "This allows Canada and Michigan to move the project forward immediately to its next steps which include further design work and property acquisition on the U.S. side of the border," Raitt said in a statement issued after she spoke in the House of Commons. 
How much is the U.S. Customs plaza expected to cost?
A: $250 million
Problem: Please answer a question about the following article about Bern:
It includes the entire Old Town, which is also a UNESCO World Heritage Site, and many sites within and around it. Some of the most notable in the Old Town include the Cathedral which was started in 1421 and is the tallest cathedral in Switzerland, the Zytglogge and Käfigturm towers, which mark two successive expansions of the Old Town, and the Holy Ghost Church, which is one of the largest Swiss Reformed churches in Switzerland. Within the Old Town, there are eleven 16th century fountains, most attributed to Hans Gieng, that are on the list.
Who is attributed to the 11 fountains in Old Town?
A: Hans Gieng
Problem: Please answer a question about the following article about Capacitor:
Capacitors, especially ceramic capacitors, and older designs such as paper capacitors, can absorb sound waves resulting in a microphonic effect. Vibration moves the plates, causing the capacitance to vary, in turn inducing AC current. Some dielectrics also generate piezoelectricity. The resulting interference is especially problematic in audio applications, potentially causing feedback or unintended recording. In the reverse microphonic effect, the varying electric field between the capacitor plates exerts a physical force, moving them as a speaker. This can generate audible sound, but drains energy and stresses the dielectric and the electrolyte, if any.
What sort of current is induced when the capacitance of a capacitor is altered?
A:
AC current