CREATE TABLE "materials" (
  "material" text,
  "type" text,
  "geometry" text,
  "output_voltage" text,
  "output_power" text,
  "synthesis" text,
  "researched_at" text
);

Question: Where was d: ~50nm, l: ~600nm geometry researched?
SQL: SELECT "researched_at" FROM "materials" WHERE "geometry"='D: ~50nm, L: ~600nm';

Question: How many materials are there for output power of ~0.1 pw per cycle (calculated)?
SQL: SELECT COUNT("material") FROM "materials" WHERE "output_power"='~0.1 pW per cycle (calculated)';

Question: What is the output power for the v p =~3 mv output voltage?
SQL: SELECT "output_power" FROM "materials" WHERE "output_voltage"='V P =~3 mV';

Question: How many synthesis are there for 5~16.2 pw per cycle (calculated) output power?
SQL: SELECT COUNT("synthesis") FROM "materials" WHERE "output_power"='5~16.2 pW per cycle (calculated)';

Question: Where was d: ~100nm, l: 1 μm geometry researched?
SQL: SELECT "researched_at" FROM "materials" WHERE "geometry"='D: ~100nm, L: 1 μm';

Question: Where was d: 25~70nm, l: 10~20 μm geometry researched?
SQL: SELECT "researched_at" FROM "materials" WHERE "geometry"='D: 25~70nm, L: 10~20 μm';