instruction:
Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
question:
The Saudades do Brasil (1920), Op. 67, are a suite of twelve dances for piano by Darius Milhaud.
answer:
What type of instrument is Saudades do Brasil designed for?

question:
Epigenetic modifications of histones regulate gene expression and chromatin structure. Here we show that Meisetz (meiosis-induced factor containing a PR/SET domain and zinc-finger motif) is a histone methyltransferase that is important for the progression of early meiotic prophase. Meisetz transcripts are detected only in germ cells entering meiotic prophase in female fetal gonads and in postnatal testis. Notably, Meisetz has catalytic activity for trimethylation, but not mono- or dimethylation, of lysine 4 of histone H3, and a transactivation activity that depends on its methylation activity. Mice in which the Meisetz gene is disrupted show sterility in both sexes due to severe impairment of the double-stranded break repair pathway, deficient pairing of homologous chromosomes and impaired sex body formation. In Meisetz-deficient testis, trimethylation of lysine 4 of histone H3 is attenuated and meiotic gene transcription is altered. These findings indicate that meiosis-specific epigenetic events in mammals are crucial for proper meiotic progression.
answer:
What is the characteristic domain of histone methyltransferases?

question:
Convenient location 5 minutes from Washington ,D.C. and one block to Crystal City METRO ,Crystal City Underground. Alexandria. Free Parking, free Deluxe Continental Breakfast and complimentary Hotel Shuttle Service to Ronald Reagan Washington National Airport. 14000 Jefferson Davis Hwy(endurance on S. Eads St.) Phone (703) 979-3722 DAYS INN ARLINGTON Days Inn Arlington is located two miles from the Pentagon ,Lincoln Memorial .There is a restaurant which serves American style food ,plus two meeting rooms and an outdoor pool. Complimentary shuttle service runs to the Rosslyn Metro Station. Complimentary parking is available on the property .An experienced staff welcomes our guests. Phone(703)525-0300 THE HIGHLANDER MOTOR INN Comfortable rooms at moderate rates . Convenient location only minutes away from Washington area attraction. Near VA Square METRO Station and Ballston Commons Shopping Mall. Free continental breakfast ,free parking. Phone(703)524-4300 HYATT REGENCY CRYSTAL CITY Conveniently located next to Washington National Airport and two miles from Washington D.C. Complimentary Shuttle to and from National Airport ,metro ,local restaurants and shopping .Experience a view to remember at out rooftop restaurants "Chesapeake Grill." Call for Reservations. Phone(073)418-12341
answer:
Which hotel is close to airports?