Triple

Target class: cyclonic gyre
Context triple: [Greenland Sea gyre, instanceOf, cyclonic gyre]

• A. ocean current chosen
  An ocean current is a continuous, directed movement of seawater driven by factors such as wind, Earth's rotation, temperature, and salinity differences, which redistributes heat, nutrients, and organisms across the world's oceans.
• B. circumpolar oceanic boundary
  A circumpolar oceanic boundary is a continuous, latitude-encircling marine zone where distinct water masses, currents, and ecological conditions separate polar oceans from adjacent lower-latitude seas.
• C. arm of the Red Sea
  An arm of the Red Sea is a long, narrow extension of the main Red Sea body that penetrates into adjacent landmasses, often forming distinct gulfs or inlets such as the Gulf of Suez or the Gulf of Aqaba.
• D. katabatic wind
  A katabatic wind is a gravity-driven downslope wind that occurs when dense, cold air flows from higher elevations to lower areas, often producing strong, gusty conditions in valleys and coastal regions.
• E. oceanographic front
  An oceanographic front is a boundary zone in the ocean where distinct water masses with different temperatures, salinities, or densities meet, creating sharp horizontal gradients and often enhanced biological and physical activity.
• F. None of above.