TASK DEFINITION: This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.
PROBLEM: Passage: Energy gives rise to weight when it is trapped in a system with zero momentum, where it can be weighed. It is also equivalent to mass, and this mass is always associated with it. Mass is also equivalent to a certain amount of energy, and likewise always appears associated with it, as described in mass-energy equivalence. The formula E = mc², derived by Albert Einstein (1905) quantifies the relationship between rest-mass and rest-energy within the concept of special relativity. In different theoretical frameworks, similar formulas were derived by J. J. Thomson (1881), Henri Poincaré (1900), Friedrich Hasenöhrl (1904) and others (see Mass-energy equivalence#History for further information). Question: In what year did Einstein create E = mc2?

SOLUTION: 1905

PROBLEM: Passage: The mermaid (syrenka) is Warsaw's symbol and can be found on statues throughout the city and on the city's coat of arms. This imagery has been in use since at least the mid-14th century. The oldest existing armed seal of Warsaw is from the year 1390, consisting of a round seal bordered with the Latin inscription Sigilium Civitatis Varsoviensis (Seal of the city of Warsaw). City records as far back as 1609 document the use of a crude form of a sea monster with a female upper body and holding a sword in its claws. In 1653 the poet Zygmunt Laukowski asks the question: Question: What is Warsaw's symbol?

SOLUTION: The mermaid

PROBLEM: Passage: The first Jewish congregation in Richmond was Kahal Kadosh Beth Shalom. Kahal Kadosh Beth Shalom was the sixth congregation in the United States. By 1822 K.K. Beth Shalom members worshipped in the first synagogue building in Virginia. They eventually merged with Congregation Beth Ahabah, an offshoot of Beth Shalom. There are two Orthodox Synagogues, Keneseth Beth Israel and Chabad of Virginia. There is an Orthodox Yeshivah K–12 school system known as Rudlin Torah academy, which also includes a post high-school program. There are two Conservative synagogues, Beth El and Or Atid. There are three Reform synagogues, Bonay Kodesh, Beth Ahabah and Or Ami. Along with such religious congregations, there are a variety of other Jewish charitable, educational and social service institutions, each serving the Jewish and general communities. These include the Weinstein Jewish Community Center, Jewish Family Services, Jewish Community Federation of Richmond and Richmond Jewish Foundation. Question: How many synagogues in the Reform tradition are present in Richmond?

SOLUTION:
three