The poem also may be read to consist of straightforward iambic verse that relies on common metrical devices such as elision, acephalous lines, promotion, and metrical inversion. Lines 1, 2, 3, 5, and 8 of each stanza are iambic pentameter; lines 4, 6, and 7 are iambic tetrameter. For instance, using traditional principles of scansion, stanza two may be scanned as shown below, where syllables in all caps represent metrical beats, lower-case syllables represent metrical off-beats, the vertical bar represents the termination of a metrical foot, and apostrophes represent elisions. The number of metrical feet per line is marked in parentheses at the end of each line: