Aeneid XI 570-580

1a           Main Clause Begins
2       Prepositional Phrases of Place
1b Main Clause Concludes
3       Participial Phrase
1       Second Main Clause Concludes
2a Main Clause Begins
2b Main Clause Concludes (īnfantis supplied from 1)
1       Prepositional Phrases
2 Main Clause
1a Main Clause Begins
1b Main Clause Continues
1c Main Clause Concludes