Concepts: coast, explore, reef
A: this submarine is exploring a small reef off the coast
Concepts: bathroom, bathtub, toilet
A: An empty bathroom with a toilet and bathtub.
Concepts: blow, steam, track, train
A: A train moving down the track blows steam from its exahust
Concepts: grass, horse, spot
A:
we soon spotted a large herd of wild horses grazing on the grasses