Gasolene and Hydrocarbon

Gasolene noun - A volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines.

Hydrocarbon and gasolene are semantically related. In some cases you can use "Hydrocarbon" instead a noun "Gasolene".

Hydrocarbon noun - An organic compound containing only carbon and hydrogen.

Gasolene and hydrocarbon are semantically related. Sometimes you can replace term "Gasolene" with "Hydrocarbon", this nouns are similar.