CREATE TABLE table_28927 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" CLOB, "Result" CLOB, "Candidates" CLOB)

What party did the incumbent Joseph Pearson belong to?
SELECT "Party" FROM table_28927 WHERE "Incumbent" = 'Joseph Pearson'
SELECT "Party" FROM "table_28927" WHERE "Incumbent" = 'Joseph Pearson'