A poem in this language written while visiting a ruined castle describes how the “summer grass” was all that was left of “warrior’s dreams.” Multiple poets contribute (10[1])alternative stanzas to create “linked verse” poems in this language called renga. (10[1])Several forms in this language are anchored by a “season word,” (10[1])such as a (10[1])poem (10[3])set in spring that simply ends with “sound of water.” Two poets used this language to write a prose and verse travelogue titled Narrow Road to the Deep North. Imperial anthologies preserve much of this language’s early court poetry from the Heian period. For 10 points, (10[1])name this language used by Matsuo Bashō and other haiku masters. ■END■ (10[1])