Context: The NBA high school draftees are players who have been drafted to the National Basketball Association (NBA) straight out of high school without playing basketball at the collegiate level. The process of jumping directly from high school to the professional level is also known as going prep-to-pro. Since 2006, the practice of drafting high school players has been prohibited by the new collective bargaining agreement, which requires that players who entered the draft be 19 years of age and at least one year removed from high school. Contrary to popular belief, the player does not have to play at least a year in college basketball, as the player can choose to instead play in another professional league (like the NBA G League or especially somewhere overseas) like Brandon Jennings or Emmanuel Mudiay in Italy and China respectively, simply take the year off, such as the case with Mitchell Robinson, or even hold themselves back a year in high school before declaring for the draft, like with Satnam Singh Bhamara or Thon Maker.
 Question: does the nba draft out of high school Context: Joel got the idea for the song when he had just turned 40. He was in a recording studio and met a friend of Sean Lennon who had just turned 21 who said ``It's a terrible time to be 21!'' Joel replied to him, ``Yeah, I remember when I was 21 -- I thought it was an awful time and we had Vietnam, and y'know, drug problems, and civil rights problems and everything seemed to be awful.'' The friend replied, ``Yeah, yeah, yeah, but it's different for you. You were a kid in the fifties and everybody knows that nothing happened in the fifties''. Joel retorted, ``Wait a minute, didn't you hear of the Korean War or the Suez Canal Crisis?'' Joel later said those headlines formed the basic framework for the song.
 Question: is we didn't start the fire about the cold war Context: In organic chemistry, an alkene is an unsaturated hydrocarbon that contains at least one carbon--carbon double bond. The words alkene and olefin are often used interchangeably (see nomenclature section below). Acyclic alkenes, with only one double bond and no other functional groups, known as mono-enes, form a homologous series of hydrocarbons with the general formula CH. Alkenes have two hydrogen atoms fewer than the corresponding alkane (with the same number of carbon atoms). The simplest alkene, ethylene (CH), with the International Union of Pure and Applied Chemistry (IUPAC) name ethene, is the organic compound produced on the largest scale industrially. Aromatic compounds are often drawn as cyclic alkenes, but their structure and properties are different and they are not considered to be alkenes.
 Question: can alkenes have more than one double bond Context: In college, the ``flagrant collision'' rule discourages, but does not prohibit, collisions at home plate and on the bases. Instead, only ``unnecessary and violent'' collisions are outlawed. While defensive players are allowed to block the plate/base with clear possession of the ball, offensive players must take steps to ensure contact with the fielder is legal--for instance, it must be below the waist. Violations of this rule carry similar penalties to the high school malicious contact rule.
 Question: can you block the plate in college baseball
No
No
Yes
Yes