FR 9904 then FR 4856 at Fiumicino
Lisbon → Rome → Catania
Timetable, Rome time
19:55FR 9904 from Lisbon at the gate
14:00FR 4856 to Catania leaves the gate
18 h 05 apart on the timetable, overnight
FR 4856 leaves 18 h 05 after FR 9904 arrives on the timetable: more than half a day, so not a connection we count.