Poem of Yukko

 is a musical composition from the Nichijou soundtrack. As its name implies, it is used in all the scenes which emphasize Yukko's talent at writing poetry: Episode 6, Part 24, where she stands in the hallway and recites haikus ending in "Mogami River; and Episode 11, Part 44, where her attempts at studying English vocab morph into poems.

It was also used in other scenes, many with a sense of resignation or other low-energy drama: Episode 10, Part 41, where the flowing noodles expert returns home after so many years; Episode 12, Part 49, where Yuuko is visited by Buddy in the hallway; Episode 16, Part 64, where Yuuko gives up on her coffee adventure and just takes espresso, which turns out to be tiny... and bitter; Episode 18, Part 74, where Yuuko resigns herself to embarrassment in order to get some candy; Episode 20, Part 83, where Yuuko decides to stop trying to fix her mistake and instead respills ink on Mio's manga, handing it to her to fix.

It was also used in Episode 9 (Quiz), and Episode 22 (Part 94).

Haikus
Haiku form consists of three phrases of 5-7-5 particles.

Note that only the first two were Yukko's; while the third one is actually a classic.

Third Haiku
The last haiku she recited is actually a well-known haiku she copied Mogami river ending from.

And to think that she has the nerve to say: "and what does it even mean".

First Poem
Source for Japanese poems.

Second Poem
An alternate version (with slightly different kana/kanji but with the same romaji - pronunciation):