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