a large green field
a field of white sheep
a row of green trees 
sheep in a field
white sheep in a field
sheep eatting green grass
white sheep eatting grass
white sheep eatting a green grass
a field of sheep
an area with sheep
an area of white sheep
sheep all in a field
a green grass field
green grass under sheep
grey sky above tree
large group of trees behind sheep
several sheep eating grass
two sheep eating grass
four sheep eating grass
several trees in a forest
a grey sky
a flock of white sheep grazing on green grass in a large pasture