2701. This verse consists of four complete bacchiac feet. There is
generally a caesura after the first long of the second or third foot, or
(more rarely) a diaeresis after the second foot. An irrational long
(or two shorts) may be substituted for the initial short only in the
first and third feet. Resolution is not allowed before the caesura or
the end of the verse. The scheme is:--
[⏑̆͐] ⏔́ ⏔̇ | ⏑ -́ ‖ ⏔̇ | [⏑̆͐] ⏔́ ⏔̇ | ⏑͞ ⏑́ -̇