CONCEPTS: balloon, fly, time

GEN: the balloon has been flying for quite some time .

CONCEPTS: cloud, field, wheat

GEN: wheat growing in a field against a blue sky with clouds

CONCEPTS: field, plant, spring, tractor

GEN: an aerial view of tractors planting potatoes in a field during the spring

CONCEPTS: building, close, day

GEN:
close up establishing shot of a brick apartment building during the day .