CREATE TABLE table_58005 ("Singular abbreviation" TEXT, "Singular Word" TEXT, "Plural abbreviation" TEXT, "Plural Word" TEXT, "Discipline" TEXT)

A plural abbreviation of pp. is used for what singular word?
SELECT "Singular Word" FROM table_58005 WHERE "Plural abbreviation" = 'pp.'
SELECT "Singular Word" FROM "table_58005" WHERE "Plural abbreviation" = 'pp.'