1.   Is that eating the food or eating the weed?

2.   Everyone else is eating these weeds.

3.   In normal times, the mountain people of northern Afghanistan do not eat the weed known as wild spinach.

4.   Then, while visiting an ostrich farm in Denmark, he realized that the huge birds eat weeds but avoid the prickly fir needles.

5.   While visiting an ostrich farm in Denmark, he realized that the huge birds eat weeds but avoid the prickly fir needles.