Complex sentence: The first known example of this narrative idea exploited for full ironic effect is Chaucer's mock heroic "Nun's Priest's Tale" which also features a long and highly comic set of scholarly excursuses on dream prediction delivered by the animals before its main action.
Split into simpler sentences: The first known example of this as a narrative idea exploited for full ironic effect is Chaucer's mock heroic "Nun's Priest's Tale". This predecessor also features a long and highly comic set of scholarly excursuses on dream prediction delivered by animals before its main action.