Simple categories matching necked:

• clothes,
• article,
• herbivore,
• dog,
• container,
• dinosaur,
• garment,

Members with property necked:

• sweater,
• bottle,
• glass_bottle,
• tube,
• turtleneck,
• pug,
• rottweiler,
• turtleneck_sweater,
• llama,
• pullover,
• piston,
• plastic_bottle,
• basset,
• shirt,
• diplodocus,
• glass,
• brontosaurus,
• mastiff,