SS Dwinsk
...that after sinking the British ocean liner SS Dwinsk in June 1918, the German submarine U-151 remained in the area and used the survivors in seven lifeboats as a lure in order to try to sink additional Allied ships?
...that after sinking the <a href="./United_Kingdom" id="mwA_s" rel="mw:WikiLink" title="United Kingdom">British</a> <a href="./Ocean_liner" id="mwA_w" rel="mw:WikiLink" title="Ocean liner">ocean liner</a> <b id="mwA_0"><a href="./SS_Dwinsk" id="mwA_4" rel="mw:WikiLink" title="SS Dwinsk">SS <i id="mwA_8">Dwinsk</i></a></b> in June 1918, the <a class="mw-redirect" href="./Kaiserliche_Marine" id="mwBAA" rel="mw:WikiLink" title="Kaiserliche Marine">German submarine</a> <a class="mw-redirect" href="./Unterseeboot_151_(1917)" id="mwBAE" rel="mw:WikiLink" title="Unterseeboot 151 (1917)"><i id="mwBAI">U-151</i></a> remained in the area and used the survivors in seven <a href="./Lifeboat_(shipboard)" id="mwBAM" rel="mw:WikiLink" title="Lifeboat (shipboard)">lifeboats</a> as a lure in order to try to sink additional <a href="./Allies_of_World_War_I" id="mwBAQ" rel="mw:WikiLink" title="Allies of World War I">Allied</a> ships?