{HEAD ~ The house} 7, wherein {TAIL ~ said ventilation system} further comprises four lower compartments that are tubular and are disposed in said lower compartment holding space of said main portion and extend vertically from said lowermost floor of said main portion to said uppermost floor of said main portion 
{ HEAD ~ The house } 7 , wherein { TAIL ~ said ventilation system } further comprises four lower compartments that are tubular and are disposed in said lower compartment holding space of said main portion and extend vertically from said lowermost floor of said main portion to said uppermost floor of said main portion
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL 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 OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH