Q: Information: - In geometry, a translation "slides" a thing by a: "T"(p) = p + a. - In geometry , a tile substitution is a method for constructing highly ordered tilings . Most importantly , some tile substitutions generate aperiodic tilings , which are tilings whose prototiles do not admit any tiling with translational symmetry . The most famous of these are the Penrose tilings . Substitution tilings are special cases of finite subdivision rules , which do not require the tiles to be geometrically rigid . - Geometry (from the ; "geo-" "earth", "-metron" "measurement") is a branch of mathematics concerned with questions of shape, size, relative position of figures, and the properties of space. A mathematician who works in the field of geometry is called a geometer. - An aperiodic tiling is a non-periodic tiling with the additional property that it does not contain arbitrarily large periodic patches. A set of tile-types (or prototiles) is aperiodic if copies of these tiles can form only non-periodic tilings. The Penrose tilings are the best-known examples of aperiodic tilings. - In the mathematical theory of tessellations, a prototile is one of the shapes of a tile in a tessellation. What is the relationship between 'substitution tiling' and 'tessellation'?
A: subclass of
Question: Information: - Itaewon Station is a station on Line 6 of the Seoul Subway . It takes its name from the neighborhood in which it is located in , also called Itaewon . There are many shops and restaurants for foreigners located close to Itaewon Station . - Itaewon (Korean: , ) refers to an area surrounding Itaewon-dong, Yongsan-gu, Seoul, South Korea. It is served by Seoul Subway Line 6 via Itaewon, Noksapyeong and Hanganjin stations. About 22,000 people reside in the district and it is a popular area for residents of Seoul, tourists, and U.S. military personnel. - Seoul Subway Line 6 is a line of the Seoul Subway. Its color is ochre. - South Korea, officially the Republic of Korea (ROK), is a sovereign state in East Asia, constituting the southern part of the Korean Peninsula. What is the relationship between 'itaewon station' and 'seoul subway line 6'?
Answer:
connecting line