"venting 1"	"venting 2"
"venting 3"	"venting 4"
"1st and 2nd floors"	"chimney"
"vent pipe-1st fl."	"collapsed ceiling- 1st fl."
"kitchen- 1st fl."	"tub plumbing- 1st fl."
"doorways- 1st fl."	"kitchen & attic- 2nd fl."