Question: Information: - The , also known as Setouchi or often shortened to Inland Sea, is the body of water separating Honsh, Shikoku, and Kysh, three of the four main islands of Japan. The region that includes the Seto Inland Sea and the coastal areas of Honsh, Shikoku, and Kysh is known as the Setouchi Region. It serves as a waterway, connecting the Pacific Ocean to the Sea of Japan. It connects to Osaka Bay and provides a sea transport link to industrial centers in the Kansai region, including Osaka and Kobe. Before the construction of the San'y Main Line, it was the main transportation link between Kansai and Kysh. - East Asia is the eastern subregion of the Asian continent, which can be defined in either geographical or ethno-cultural terms. Geographically and geopolitically, it includes China, Hong Kong, and Macao; Mongolia and Taiwan; North and South Korea; and Japan; it covers about , or about 28% of the Asian continent, about twice the area of Europe. - Kombu (from ) is edible kelp from the family Laminariaceae and is widely eaten in East Asia. It may also be referred to as, dasima or haidai. Some edible kelps in the family "Laminariaceae" are not always called kombu, such as arame, ("Ecklonia kurome") or "Macrocystis pyrifera". Most "kombu" is from the species "Saccharina japonica" ("Laminaria japonica"), extensively cultivated on ropes in the seas of Japan and Korea. With the development of cultivation technology, over 90% of Japanese "kombu" is cultivated, mostly in Hokkaid, but also as far south as the Seto Inland Sea. - Saccharina japonica is a marine species of Phaeophyceae (brown algae), a type of kelp or seaweed, that is extensively cultivated in China, Japan and Korea. - Macrocystis pyrifera, commonly known as giant kelp or giant bladder kelp, is a species of kelp (large brown algae), and one of four species in the genus "Macrocystis". Giant kelp is common along the coast of the eastern Pacific Ocean, from Baja California north to southeast Alaska, and is also found in the southern oceans near South America, South Africa, Australia, and New Zealand. Individual algae may grow to more than long at a rate of as much as per day. Giant kelp grows in dense stands known as kelp forests, which are home to many marine animals that depend on the algae for food or shelter. The primary commercial product obtained from giant kelp is alginate, but humans also harvest this species on a limited basis for use directly as food, as it is rich in iodine, potassium, and other minerals. It can be used in cooking in many of the ways other sea vegetables are used, and particularly serves to add flavor to bean dishes. - , sea oak is a species of kelp, of the Brown algae, best known for its use in Japanese cuisine. - Kelps are large seaweeds (algae) belonging to the brown algae (Phaeophyceae) in the order Laminariales. There are about 30 different genera. - Cheonsachae are Korean half - transparent noodles made from the jelly - like extract left after steaming kombu , without the addition of grain flour or starch . The taste of these noodles is bland , so they are generally eaten as a light salad after seasoned or served as a garnish beneath saengseon hoe ( sliced raw fish ) . Cheonsachae has a chewy texture and is low in calories . - Laminariaceae is a family of brown algal seaweeds, many genera of which are popularly called "kelp." The table indicates the genera within this family. The family includes the largest known seaweeds: "Nereocystis" and "Macrocystis". Given the information, choose the subject and object entities that have the relation of 'subclass of'.
Answer:
cheonsachae , food