Title: Transistor.
Question: What controls the large current between the collector and emitter?

Title: Airport.
Question: What is an aerodome with facilities for flights to take off and land?

Title: Oklahoma.
Question: What industry are all of the Oklahoma-based Fortune 500 companies in?

Title: Genocide.
Question:
Which country's courts were noted by the ECHR for taking a wider stance on provisions of genocide laws?