Table: election_polls_1989
Columns: polling_firm
date
link
psoe
others
lead

Question: What is lead for the Election Results polling firm and has a PSOE of 39.6% 175?
SQL: SELECT "lead" FROM election_polls_1989 WHERE "polling_firm" = 'election results' AND "psoe" = '39.6% 175'

Question: What is the PSOE for the Local Elections polling firm?
SQL: SELECT "psoe" FROM election_polls_1989 WHERE "polling_firm" = 'local elections'

Question: Which date has a PSOE of 36.1%?
SQL: SELECT "date" FROM election_polls_1989 WHERE "psoe" = '36.1%'