 Because of the varied reception to Kilmer 's poem and its simple rhyme and meter , it has been the model for several parodies written by humorists and poets alike . While keeping with Kilmer 's iambic tetrameter rhythm and its couplet rhyme scheme , and references to the original poem 's thematic material , such parodies are often immediately recognizable , as is seen in " Song of the Open Road " written by poet and humorist Ogden Nash : " I think that I shall never see / A billboard lovely as a tree . / Indeed , unless the billboards fall , / I 'll never see a tree at all . " 
 Because of the varied reception to Kilmer <a href='null_genetive' title='1'><mark>'s</mark></a>poem and its simple rhyme and meter , it <a href='uninflect' title='2'><mark>has</mark></a> been the model for several parodies written by humorists and poets alike . While keeping with Kilmer <a href='null_genetive' title='3'><mark>'s</mark></a>iambic tetrameter rhythm and its couplet rhyme scheme , and references to the original poem <a href='null_genetive' title='4'><mark>'s</mark></a>thematic material , such parodies are often immediately recognizable , as is seen in " Song of the Open Road " written by poet and humorist Ogden Nash : " I think that I shall never see / A billboard lovely as a tree . / Indeed , unless the billboards fall , / I 'll never see <a href='None' title='5'><mark>a</mark></a><a href='negative_concord' title='6'><mark>tree</mark></a> at all . " 
Because of the varied reception to Kilmer  poem and its simple rhyme and meter , it have been da model for several parodies written by humorists and poets alike . While keepin wit Kilmer  iambic tetrameter rhythm and its couplet rhyme scheme , and references to the original poem  thematic material , such parodies r often immediately recognizable , as is seen in " Song of the Open Road " written by poet and humorist Ogden Nash : " I think that I shall never see / A billboard lovely as a tree . / Indeed , unless the billboards fall , / I 'll never see no tree at all . "