Table:
0
A
B
C
D
E
1
Year
Competition
Venue
Position
Event
2
2005
European U23 Championships
Erfurt, Germany
9th
3000 m st.
3
2005
Universiade
İzmir , Turkey
11th
3000 m st.
4
2006
European Championships
Gothenburg , Sweden
17th (h)
3000 m st.
5
2006
European Cross Country Championships
San Giorgio su Legnano , Italy
2nd
Under-23 race
6
2007
World Cross Country Championships
Mombasa , Kenya
14th
Senior race
7
2007
World Championships
Osaka , Japan
12th
3000 m st.
8
2008
World University Cross Country Championships
Haute Normandie - Rouen , France
2nd
Under-23
9
2008
Olympic Games
Beijing, China
heats
3000 m st.
10
2009
Universiade
Belgrade, Serbia
6th
3000 m st.
11
2010
European Championships
Barcelona , Spain
11th
3000 m st.
12
2011
World Championships
Daegu, South Korea
heats
3000 m st.
13
2011
European Cross Country Championships
Velenje , Slovenia
1st
Senior race
14
2012
European Championships
Helsinki , Finland
4th
10000 m
15
2012
Olympic Games
London, England
15th
10,000 m
16
2012
Olympic Games
London, England
heats
5000 m
17
2012
European Cross Country Championships
Budapest , Hungary
1st
Senior race
18
2013
European Indoor Championships
Gothenburg , Sweden
3rd
3000m
19
2013
World Cross Country Championships
Bydgoszcz , Poland
14th
Senior Race

Questions and formulas:
Question: What competition was the World Championships before 2011?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(B1="world championships")*(A1<2011)),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E19,(B2:B19="world championships")*(A2:A19<2011)),5))
Level: medium
Question: What event took place in Erfurt, Germany?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="erfurt, germany"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E19,C2:C19="erfurt, germany"),5))
Level: medium