Triple

Target class: high-pressure boiler
Context triple: [Power Boilers, instanceOf, high-pressure boiler]

• A. water-cooled reactor
  A water-cooled reactor is a nuclear reactor that uses water as both a coolant to remove heat from the reactor core and often as a moderator to slow down neutrons, enabling a controlled fission chain reaction.
• B. pressure equipment code chosen
  A pressure equipment code is a formal set of engineering standards and regulatory requirements that govern the design, fabrication, inspection, testing, and safe operation of pressure-containing equipment such as boilers, pressure vessels, and piping systems.
• C. integrated steel mill
  An integrated steel mill is a large industrial complex that converts raw materials like iron ore, coal, and limestone into finished steel products through a continuous, vertically integrated process including coke making, ironmaking, steelmaking, and rolling.
• D. liquid-cooled aircraft engine
  A liquid-cooled aircraft engine is a piston or reciprocating powerplant that uses a circulating liquid coolant, typically water or glycol, to absorb and dissipate heat from the engine cylinders and heads, enabling efficient temperature control and reliable operation in flight.
• E. steam-powered railway
  A steam-powered railway is a transportation system in which trains are propelled along tracks by locomotives that generate mechanical power from steam produced by boiling water, typically using coal or other fuels.
• F. None of above.