90151
Most of the other tidal rail-ferry ports initially adopted this arrangement in the English Channel , North Sea and Irish Sea routes but have now moved away to the more flexible arrangement described below .
 English Channel, North Sea, Irish Sea
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 English Channel, North Sea, Irish Sea