Input: Read this: Holes through a PCB are typically drilled with small-diameter drill bits made of solid coated tungsten carbide. Coated tungsten carbide is recommended since many board materials are very abrasive and drilling must be high RPM and high feed to be cost effective. Drill bits must also remain sharp so as not to mar or tear the traces. Drilling with high-speed-steel is simply not feasible since the drill bits will dull quickly and thus tear the copper and ruin the boards. The drilling is performed by automated drilling machines with placement controlled by a drill tape or drill file. These computer-generated files are also called numerically controlled drill (NCD) files or "Excellon files". The drill file describes the location and size of each drilled hole.
Question: Holes through a PBC are drilled how?

Output: unanswerable


QUES: In 1990 religion and politics intersected to impact the outcome of the Eighth District election in South Richmond. With the endorsements of black power brokers, black clergy and the Richmond Crusade for Voters, South Richmond residents made history, electing Reverend A. Carl Prince to the Richmond City Council. As the first African American Baptist Minister elected to the Richmond City Council, Prince's election paved the way for a political paradigm shift in politics that persist today. Following Prince's election, Reverend Gwendolyn Hedgepeth and the Reverend Leonidas Young, former Richmond Mayor were elected to public office. Prior to Prince's election black clergy made political endorsements and served as appointees to the Richmond School Board and other boards throughout the city. Today religion and politics continues to thrive in the Commonwealth of Virginia. The Honorable Dwight C. Jones, a prominent Baptist pastor and former Chairman of the Richmond School Board and Member of the Virginia House of Delegates serves as Mayor of the City of Richmond.

What is the current mayor of Richmond?
What is the answer?
ANS: Dwight C. Jones


QUES: Physiologically, the function of the brain is to exert centralized control over the other organs of the body. The brain acts on the rest of the body both by generating patterns of muscle activity and by driving the secretion of chemicals called hormones. This centralized control allows rapid and coordinated responses to changes in the environment. Some basic types of responsiveness such as reflexes can be mediated by the spinal cord or peripheral ganglia, but sophisticated purposeful control of behavior based on complex sensory input requires the information integrating capabilities of a centralized brain.
What type of responsiveness can be used without a brain?

ANS: reflexes


A month after the Spanish Civil War began in 1936, several players from Barcelona enlisted in the ranks of those who fought against the military uprising, along with players from Athletic Bilbao. On 6 August, Falangist soldiers near Guadarrama murdered club president Josep Sunyol, a representative of the pro-independence political party. He was dubbed the martyr of barcelonisme, and his murder was a defining moment in the history of FC Barcelona and Catalan identity. In the summer of 1937, the squad was on tour in Mexico and the United States, where it was received as an ambassador of the Second Spanish Republic. The tour led to the financial security of the club, but also resulted in half of the team seeking asylum in Mexico and France, making it harder for the remaining team to contest for trophies.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Where did half of the Barcelona team seek asylum in 1937?
Ah, so.. Mexico and France


Question: The Portuguese language is the official national language and the primary language taught in schools. English and Spanish are also part of the official curriculum. The city has six international schools: American School of Brasília, Brasília International School (BIS), Escola das Nações, Swiss International School (SIS), Lycée français François-Mitterrand (LfFM) and Maple Bear Canadian School. August 2016 will see the opening of a new international school - The British School of Brasilia. Brasília has two universities, three university centers, and many private colleges.
Try to answer this question if possible: In what year will the official curriculum start?
Answer: unanswerable


Context and question: Montana i/mɒnˈtænə/ is a state in the Western region of the United States. The state's name is derived from the Spanish word montaña (mountain). Montana has several nicknames, although none official, including "Big Sky Country" and "The Treasure State", and slogans that include "Land of the Shining Mountains" and more recently "The Last Best Place". Montana is ranked 4th in size, but 44th in population and 48th in population density of the 50 United States. The western third of Montana contains numerous mountain ranges. Smaller island ranges are found throughout the state. In total, 77 named ranges are part of the Rocky Mountains.
What is the states rank in size?
Answer:
4th