Beethoven Quartet
The Beethoven Quartet ( , "Strunnyĭ kvartet imeni Betkhovena" ) was a string quartet founded between 1922 and 1923 by graduates of the Moscow Conservatory: violinists Dmitri Tsyganov and Vasily Shirinsky , violist Vadim Borisovsky and cellist Sergei Shirinsky ( half brother of Vasily ) . 
<triplet> Beethoven Quartet <subj> string quartet <obj> instance of <subj> 1922 <obj> inception <triplet> Vadim Borisovsky <subj> Moscow Conservatory <obj> educated at