Numbers Addressing a Table's Parent Sheet

tell application "Numbers"
    activate
    if not (exists document 1) then error number -128

    tell document 1
        --addressing a sheet by its name
        tell sheet "2014 Expenses"
            --table making command goes here
        end tell

        --addressing a sheet by its index value
        tell sheet 5
            --table making command goes here
        end tell

        --addressing the currently displayed sheet
        tell active sheet
            --table making command goes here
        end tell
        --addressing a stored reference to a specific sheet
        tell thisSheet to make new sheet
        tell thisSheet
            --table making command goes here
        end tell
    end tell
end tell