This substance “is letting go of you” and “finds a new boo” in a 2018 book-length breakup poem by Tommy Pico. A poem exclaims, “poetry to no purpose! all this [this substance]! all these words,” in a section that laments, “since words were introduced here things have gone poorly for the planet.” A long poem claims this substance “has to be the poem of our time” (15[1])because it “is (15[1])spiritual, believable enough / to get (15[1])our attention.” The speaker of a poem partly titled for this substance (15[1])vows to look “like Walt Whitman” with “a homemade (-5[1])(*) bomb in the pocket.” In a reference to Yeats, a poetic speaker named for this substance repeats, “Let us arise and go now / to the Isle of (10[1])Manisfree.” (10[2]-5[1])A long poem titled for this substance (-5[1])won the 1993 National (10[1])Book Award for A. R. Ammons. (10[1]-5[1])For 10 points, a man who works with what substance titles an “Obbligato” (10[1])by Lawrence Ferlinghetti? (10[1])■END■ (10[3]0[2])