Prospect House
... that the Prospect House at Blue Mountain Lake in New York was the first hotel anywhere to be equipped with electric lighting in all the guest rooms?
... that the <b id="mwAVU"><a class="new" data-mw-i18n='{"title":{"lang":"x-page","key":"red-link-title","params":["Prospect House (Blue Mountain Lake (New York))"]}}' href="./Prospect_House_(Blue_Mountain_Lake_(New_York))?action=edit&amp;redlink=1" id="mwAVY" rel="mw:WikiLink" title="Prospect House (Blue Mountain Lake (New York))" typeof="mw:LocalizedAttrs">Prospect House</a></b> at <a class="mw-redirect mw-disambig" href="./Blue_Mountain_Lake_(New_York)" id="mwAVc" rel="mw:WikiLink" title="Blue Mountain Lake (New York)">Blue Mountain Lake</a> in New York was the first hotel anywhere to be equipped with electric lighting in all the guest rooms?