{HEAD ~ The term “container}” refers to {TAIL ~ a closed or open space}, which may be made of rigid or flexible material, e.g., may be a bag or box or trough 
{ HEAD ~ The term “ container } ” refers to { TAIL ~ a closed or open space } , which may be made of rigid or flexible material , e.g. , may be a bag or box or trough
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH