You will be given a passage, and your task is to generate a Yes/No question that is answerable based on the given passage.

[Q]: The EF of the left heart, known as the left ventricular ejection fraction (LVEF), is calculated by dividing the volume of blood pumped from the left ventricle per beat (stroke volume) by the volume of blood collected in the left ventricle at the end of diastolic filling (end-diastolic volume). LVEF is an indicator of the effectiveness of pumping into the systemic circulation. The EF of the right heart, or right ventricular ejection fraction (RVEF), is a measure of the efficiency of pumping into the pulmonary circulation. A heart which cannot pump sufficient blood to meet the body's requirements (i.e., heart failure) will often, but not invariably, have a reduced ventricular ejection fraction.
[A]: is ejection fraction the same as stroke volume?

[Q]: When a person is called for jury duty in the United States, that service is mandatory and the person summoned for jury duty must attend. Failing to report for jury duty is illegal and usually results in an individual simply being placed back into the selection pool in addition to potential criminal prosecution. Repeatedly ignoring a jury summons without explanation will result in strict penalties, which may include being fined or a bench warrant issued for contempt of court. Employers are not allowed to fire an employee for being called to jury duty, but they are typically not required to pay salaries during this time. When attended, potential jurors may be asked to serve as a juror in a trial, or they may be dismissed.
[A]: is it illegal to not do jury duty?

[Q]: Taxation in Puerto Rico takes the form of both Federal and Commonwealth taxes. Puerto Rico has independent tax-levying authority by provisions of 48 U.S.C. 734 of the United States code.
[A]:
do citizens in puerto rico pay us taxes?