CREATE TABLE "notes" (
  "specimen_weight_size" text,
  "calculated_activity_bq" real,
  "calculated_activity_ci" text,
  "estimated_activity_gr_api" text,
  "estimated_exposure_m_rem_hr" text
);

Question: if the estimated exposure ( mrem )/hr* is 0.28, what is the specimen weight/size?
SQL: SELECT COUNT("specimen_weight_size") FROM "notes" WHERE "estimated_exposure_m_rem_hr"='0.28';

Question: If the specimen weight /size is 1000 g / 8.79 cm, what is the estimated exposure ( mrem )/hr*?
SQL: SELECT "estimated_exposure_m_rem_hr" FROM "notes" WHERE "specimen_weight_size"='1000 g / 8.79 cm';

Question: If the calculated activity (CI) is  4.96×10 −11, what is the specimen weight/size?
SQL: SELECT "specimen_weight_size" FROM "notes" WHERE "calculated_activity_ci"='4.96×10 −11';

Question: If the specimen weight/size is 1000 g / 8.79 cm, what is the calculated activity?
SQL: SELECT COUNT("calculated_activity_bq") FROM "notes" WHERE "specimen_weight_size"='1000 g / 8.79 cm';