Two people in a field are harvesting fruit or vegetables.
A girl is picking flowers from the garden.
Flowers are usually not considered food, while fruit or vegetables are considered food.  A girl implies only one person while  two people are said to be in a field.
exists x1 x2.((exists e1 x3.(Theme(e1,x3) & Actor(e1,x1) & v_harvest(e1) & n_fruit(x3)) | exists e2 x4.(Theme(e2,x4) & Actor(e2,x1) & v_harvest(e2) & n_vegetable(x4))) & in(x1,x2) & n_field(x2) & n_people(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_garden(x3) & from(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_pick(e1) & n_flower(x2) & n_girl(x1))