Using the attributes that a building contractor has identified for her business, the following relation was defined.

Building $($sitenum$,$ address, contractprice, compl$-$date, itemno, itemname, qty$,$ price, sub$-$contractor, jobname, sub$-$price, owner, owner$-$tele$)$

The functional dependencies that relate to the attributes are:

Sitenum $->$ address, contractprice, compl$-$date, owner

Itemno $->$ itemname

Sitenum, itemno $->$ qty$,$ price, itemname

Sitenum, sub$-$contractor $->$ sub$-$price, address

Sub$-$contractor $->$ jobname

Owner $->$ owner$-$tele

In answering the following questions, please make no assumptions other than those provided by the functional dependencies.