Assertion: seaweed cultivator | /r/HasProperty | device
Facets:
Source sentences:
text: A seaweed cultivator is a device which grows seaweed, usually in weekly or bi-weekly cycles.
text: Seaweed cultivators (the devices) are just now becoming available to the public, mainly because of the LED (light-emitting diode) which has made low-cost, reliable, and waterproof illumination sources (especially in the red 660-nanometer spectrum) feasible.