四行連
envelope stanzaまたはintroverted quatrainとも呼ばれる。
Strong Son of God, immortal Love,
Whom we, that have not seen thy face,
By faith, and faith alone, embrace,
Believing where we cannot prove;
-- アルフレッド・テニスン『In Memoriam A.H.H.』(en:In Memoriam A.H.H.)
There lived a wife at Usher's Well,
And a wealthy wife was she;
She had three stout and stalwart sons,
And sent them over the sea.
-- バラッド『The Wife of Usher's Well』(en:The Wife of Usher's Well)