Table:
0
A
B
C
D
E
F
1
Year
Competition
Venue
Position
Event
Notes
2
1995
Venice Marathon
Venice, Italy
1st
Marathon
2:29:11
3
1996
Olympic Games
Atlanta, United States
—
Marathon
DNF
4
1997
Monaco Marathon
Monte Carlo, Monaco
1st
Marathon
2:28:16
5
1998
Italian Marathon
Carpi, Italy
1st
Marathon
2:31:23
6
1998
European Championships
Budapest , Hungary
3rd
Marathon
2:28:31
7
1999
Rome City Marathon
Rome, Italy
1st
Marathon
2:29:36
8
2000
Vienna Marathon
Vienna, Austria
1st
Marathon
2:23:47
9
2000
Olympic Games
Sydney, Australia
12th
Marathon
2:29:26
10
2001
Prague Marathon
Prague, Czech Republic
1st
Marathon
2:26:33

Questions and formulas:
Question: Which Venue has a Notes of 2:28:31?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1="2:28:31"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,F2:F10="2:28:31"),3))
Level: medium
Question: Which Venue has a Competition of venice marathon?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,B1="venice marathon"),3))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,B2:B10="venice marathon"),3))
Level: medium
Question: Which Year that has Notes of dnf?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1="dnf"),1))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,F2:F10="dnf"),1))
Level: medium
Question: Which Competition has a Year larger than 2000?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1>2000),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F10,A2:A10>2000),2))
Level: medium