CREATE TABLE "table1_23512864_4" (
  "election_year" real,
  "assembly" text,
  "winning_party_coalition" text,
  "chief_minister" text,
  "speaker" text
);

Question: Who is the winning party/coalition name in election year 1980?
SQL: SELECT "winning_party_coalition" FROM "table1_23512864_4" WHERE "election_year"=1980;

Question: If the speaker is Munu Adhi (2) K. Rajaram, what is the election year maximum?
SQL: SELECT MAX("election_year") FROM "table1_23512864_4" WHERE "speaker"='Munu Adhi (2) K. Rajaram';

Question: If the speaker is R. Muthiah, what is the election year maximum?
SQL: SELECT MAX("election_year") FROM "table1_23512864_4" WHERE "speaker"='R. Muthiah';

Question: What is the name of the speaker if the chief minister is M.G. Ramachandran?
SQL: SELECT "speaker" FROM "table1_23512864_4" WHERE "chief_minister"='M.G. Ramachandran';

Question: If the assembly is the sixth assembly, what is the maximum election year?
SQL: SELECT MAX("election_year") FROM "table1_23512864_4" WHERE "assembly"='Sixth Assembly';