Lviv tram
...that the Lviv tram, opened on May 5, 1880 in Galicia (then part of Austria-Hungary), is one of the last urban transit systems in the former Soviet Union to still use grooved rail?
...that the <b id="mwAvQ"><a class="mw-redirect" href="./Lviv_tram" id="mwAvU" rel="mw:WikiLink" title="Lviv tram">Lviv tram</a></b>, opened on <a href="./May_5" id="mwAvY" rel="mw:WikiLink" title="May 5">May 5</a>, <a href="./1880" id="mwAvc" rel="mw:WikiLink" title="1880">1880</a> in <a class="mw-redirect" href="./Galicia_(Central_Europe)" id="mwAvg" rel="mw:WikiLink" title="Galicia (Central Europe)">Galicia</a> (then part of <a href="./Austria-Hungary" id="mwAvk" rel="mw:WikiLink" title="Austria-Hungary">Austria-Hungary</a>), is one of the last urban <a href="./Passenger_rail_terminology" id="mwAvo" rel="mw:WikiLink" title="Passenger rail terminology">transit systems</a> in the former <a href="./Soviet_Union" id="mwAvs" rel="mw:WikiLink" title="Soviet Union">Soviet Union</a> to still use <a href="./Tramway_track#Grooved_rail" id="mwAvw" rel="mw:WikiLink" title="Tramway track">grooved rail</a>?