Input: Article: There are 29 isotopes of copper. 63Cu and 65Cu are stable, with 63Cu comprising approximately 69% of naturally occurring copper; they both have a spin of 32. The other isotopes are radioactive, with the most stable being 67Cu with a half-life of 61.83 hours. Seven metastable isotopes have been characterized, with 68mCu the longest-lived with a half-life of 3.8 minutes. Isotopes with a mass number above 64 decay by , whereas those with a mass number below 64 decay by +. 64Cu, which has a half-life of 12.7 hours, decays both ways.

Now answer this question: What is the half life of the copper isotope 67Cu?

Output: 61.83 hours

Input: Article: On July 1, 1988, the fourth and last day of a bruising 19th Party Conference, Gorbachev won the backing of the tired delegates for his last-minute proposal to create a new supreme legislative body called the Congress of People's Deputies. Frustrated by the old guard's resistance, Gorbachev embarked on a set of constitutional changes to try to separate party and state, and thereby isolate his conservative Party opponents. Detailed proposals for the new Congress of People's Deputies were published on October 2, 1988, and to enable the creation of the new legislature the Supreme Soviet, during its November 29December 1, 1988, session, implemented amendments to the 1977 Soviet Constitution, enacted a law on electoral reform, and set the date of the election for March 26, 1989.

Now answer this question: What was the proposed legislative body called?

Output: Congress of People's Deputies

Input: Article: As of 2010[update], Bern had an unemployment rate of 3.3%. As of 2008[update], there were 259 people employed in the primary economic sector and about 59 businesses involved in this sector. 16,413 people were employed in the secondary sector and there were 950 businesses in this sector. 135,973 people were employed in the tertiary sector, with 7,654 businesses in this sector.

Now answer this question: What was Berns unemployment rate in 2010?

Output:
3.3%