Ian Agol
... that University of California, Berkeley math professor Ian Agol has a twin brother who is a University of Washington astronomy professor?
... that <a href="./University_of_California,_Berkeley" id="mwAXg" rel="mw:WikiLink" title="University of California, Berkeley">University of California, Berkeley</a> math professor <b id="mwAXk"><a href="./Ian_Agol" id="mwAXo" rel="mw:WikiLink" title="Ian Agol">Ian Agol</a></b> has a twin brother who is a <a href="./University_of_Washington" id="mwAXs" rel="mw:WikiLink" title="University of Washington">University of Washington</a> astronomy professor?