CREATE TABLE "member_institutions" (
  "institution" text,
  "location" text,
  "founded" real,
  "type" text,
  "joined" real,
  "nickname" text,
  "colors" text
);

Question: When did Northeastern University join?
SQL: SELECT SUM("joined") FROM "member_institutions" WHERE "institution"='northeastern university';

Question: Which type of institution is in Amherst, MA?
SQL: SELECT "type" FROM "member_institutions" WHERE "location"='amherst, ma';