affiliated with the University of Pennsylvania
... that three 1972 Nobel laureates affiliated with the University of Pennsylvania were each awarded an honorary Doctor of Science degree by the university in 1973?
... that three 1972 <a class="mw-redirect" href="./Nobel_laureates" id="mwBEk" rel="mw:WikiLink" title="Nobel laureates">Nobel laureates</a> <b id="mwBEo"><a class="mw-redirect" href="./List_of_Nobel_Laureates_affiliated_with_the_University_of_Pennsylvania" id="mwBEs" rel="mw:WikiLink" title="List of Nobel Laureates affiliated with the University of Pennsylvania">affiliated with the University of Pennsylvania</a></b> were each awarded an <a href="./Honorary_degree" id="mwBEw" rel="mw:WikiLink" title="Honorary degree">honorary</a> <a href="./Doctor_of_Science" id="mwBE0" rel="mw:WikiLink" title="Doctor of Science">Doctor of Science</a> degree by the university in 1973?