$1.$ An engineer designed a cleanroom suite with a nested layout consisting of a Fermentation Area with ISO $8$ classification, a Purification Area with ISO $7$ classification, and a Fill Area with ISO $5$ classification. The engineer specified a total of $8$ airlocks to be used for personnel movement or materials transfer between the classified areas.

Fill in the blanks to identify the following for each airlock:

$$ Location $($between which two areas, where Area $=$ Unclassified, Fermentation, Purification, or Fill$)$

$$ Purpose $($Personnel or Materials$)$

$$ Direction $($relative to the Cleaner Area, e$.$g$.,$ In$,$ Out, or In & Out$)$