Context and question: HDTV technology was introduced in the United States in the late 1980s and made official in 1993 by the Digital HDTV Grand Alliance, a group of television, electronic equipment, communications companies consisting of AT&T Bell Labs, General Instrument, Philips, Sarnoff, Thomson, Zenith and the Massachusetts Institute of Technology. Field testing of HDTV at 199 sites in the United States was completed August 14, 1994. The first public HDTV broadcast in the United States occurred on July 23, 1996 when the Raleigh, North Carolina television station WRAL-HD began broadcasting from the existing tower of WRAL-TV southeast of Raleigh, winning a race to be first with the HD Model Station in Washington, D.C., which began broadcasting July 31, 1996 with the callsign WHD-TV, based out of the facilities of NBC owned and operated station WRC-TV. The American Advanced Television Systems Committee (ATSC) HDTV system had its public launch on October 29, 1998, during the live coverage of astronaut John Glenn's return mission to space on board the Space Shuttle Discovery. The signal was transmitted coast-to-coast, and was seen by the public in science centers, and other public theaters specially equipped to receive and display the broadcast.
 Who made SDTV official in 1993?
Answer: unanswerable
Context and question: The 1977 Knesset elections marked a major turning point in Israeli political history as Menachem Begin's Likud party took control from the Labor Party. Later that year, Egyptian President Anwar El Sadat made a trip to Israel and spoke before the Knesset in what was the first recognition of Israel by an Arab head of state. In the two years that followed, Sadat and Begin signed the Camp David Accords (1978) and the Israel–Egypt Peace Treaty (1979). In return, Israel withdrew from the Sinai Peninsula, which Israel had captured during the Six-Day War in 1967, and agreed to enter negotiations over an autonomy for Palestinians in the West Bank and the Gaza Strip.
Where did Anwar El Sadat make a trip to?
Answer: Israel
Context and question: Hebrew is the liturgical language of Judaism (termed lashon ha-kodesh, "the holy tongue"), the language in which most of the Hebrew scriptures (Tanakh) were composed, and the daily speech of the Jewish people for centuries. By the 5th century BCE, Aramaic, a closely related tongue, joined Hebrew as the spoken language in Judea. By the 3rd century BCE, some Jews of the diaspora were speaking Greek. Others, such as in the Jewish communities of Babylonia, were speaking Hebrew and Aramaic, the languages of the Babylonian Talmud. These languages were also used by the Jews of Israel at that time.[citation needed]
What language did the Jews of Israel not use at that time?
Answer:
unanswerable