CREATE TABLE table_3621 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" CLOB, "Result" CLOB, "Candidates" CLOB)

who was running in the section pennsylvania 5
SELECT "Candidates" FROM table_3621 WHERE "District" = 'Pennsylvania 5'
SELECT "Candidates" FROM "table_3621" WHERE "District" = 'Pennsylvania 5'