Jewish ghettos in German-occupied Poland
... that among the Jewish ghettos in German-occupied Poland the most populous was the Warsaw Ghetto with over 400,000 inhabitants crammed into an area of 1.3 sq mi (3.4 km2)?
... that among the <b id="mwDr0"><a class="mw-redirect" href="./Jewish_ghettos_in_German-occupied_Poland" id="mwDr4" rel="mw:WikiLink" title="Jewish ghettos in German-occupied Poland">Jewish ghettos in German-occupied Poland</a></b> the most populous was the <a href="./Warsaw_Ghetto" id="mwDr8" rel="mw:WikiLink" title="Warsaw Ghetto">Warsaw Ghetto</a> <i id="mwDsA">(pictured)</i> with over 400,000 inhabitants crammed into an area of <span about="#mwt71" data-mw='{"parts":[{"template":{"target":{"wt":"convert","href":"./Template:Convert"},"params":{"1":{"wt":"1.3"},"2":{"wt":"sqmi"},"3":{"wt":"km2"},"abbr":{"wt":"on"}},"i":0}}]}' id="mwDsE" typeof="mw:Transclusion">1.3</span><span about="#mwt71" typeof="mw:Entity"> </span><span about="#mwt71">sq</span><span about="#mwt71" typeof="mw:Entity"> </span><span about="#mwt71">mi (3.4</span><span about="#mwt71" typeof="mw:Entity"> </span><span about="#mwt71">km</span><sup about="#mwt71">2</sup><span about="#mwt71">)</span>?