Table:
0
A
B
C
D
E
F
1
Ship
Built
Builder
Entered Service for AIDA
Gross Tonnage
Flag
2
AIDAcara
1996
Aker MTW
1996–Present
38,531 tons
Italy
3
AIDAvita
2002
Aker MTW
2002–Present
42,289 tons
Italy
4
AIDAaura
2003
Aker MTW
2003–Present
42,289 tons
Italy
5
AIDAdiva
2007
Meyer Werft
2007–Present
69,203 tons
Italy
6
AIDAbella
2008
Meyer Werft
2008–Present
69,203 tons
Italy
7
AIDAluna
2009
Meyer Werft
2009–Present
69,203 tons
Italy
8
AIDAblu
2010
Meyer Werft
2010–Present
71,300 tons
Italy
9
AIDAsol
2011
Meyer Werft
2011–Present
71,300 tons
Italy
10
AIDAmar
2012
Meyer Werft
2012–Present
71,300 tons
Italy
11
AIDAstella
2013
Meyer Werft
2013–Present
71,304 tons
Italy

Questions and formulas:
Question: Which Flag did the Ship Aidavita have?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="aidavita"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F11,A2:A11="aidavita"),6))
Level: medium