Identify the subject, verb, compliment, adj and prepositional phrase and adverb

Question

1. The immensely long wagon train started out from Denver, Colorado.
2. Both oxen and mules were used to pull unusually large wagons.
3. Even in good weather, the long trail through the mountains was fairly hazardous.
4. A moderately hard rain could turn the trail into a swamp.
5. When the trail was too muddy, the heavier wagons became mired.

1. train-subject, started-verb, out-compliment, long-adj, immensely-adv, from Denver, Colorado-prep phrase
2. oxen, mules-sub, were used-verb, to pull=prep phrase, usually-adverb, large-adj
3. trail-sub, was hazardous-verb, fairly-adverb, through the mountains-prep phrase, long-adj
4. rain-sub, could turn-verb, trail-compliment, moderately-adverb, hard-adj
5. wagons-sub, became-verb, mired=compliment, heavier-adj, too-adverb

Answer 1

1. Out is an adverb, not a complement.
2. To pull is not a prep phrase.
3. complement?
4. prep phrase?
5. Right.

Answer 2

1. no compliment
2. No prep phrase
3. through the mountains-prep phrase, was-verb, hazardous-compliment
4. into a swamp-prep phrase