Table:
0
A
B
C
D
E
1
Year
Track
50 cc
125 cc
Report
2
1983
Rijeka
Stefan Dörflinger
Bruno Kneubühler
Report
3
1982
Rijeka
Eugenio Lazzarini
Eugenio Lazzarini
Report
4
1981
Rijeka
Ricardo Tormo
Loris Reggiani
Report
5
1980
Rijeka
Ricardo Tormo
Guy Bertin
Report
6
1979
Rijeka
Eugenio Lazzarini
Angel Nieto
Report
7
1978
Rijeka
Ricardo Tormo
Angel Nieto
Report
8
1977
Opatija
Angel Nieto
Pier Paolo Bianchi
Report
9
1976
Opatija
Ulrich Graf
Pier Paolo Bianchi
Report
10
1975
Opatija
Angel Nieto
Dieter Braun
Report
11
1974
Opatija
Henk van Kessel
Kent Andersson
Report
12
1973
Opatija
Jan de Vries
Kent Andersson
Report
13
1972
Opatija
Jan Bruins
Kent Andersson
Report
14
1970
Opatija
Angel Nieto
Dieter Braun
Report
15
1969
Opatija
Paul Lodewijkx
Dieter Braun
Report

Questions and formulas:
Question: What's the value for report for the rijeka track after 1978 when loris reggiani got the 125cc?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,(B1="rijeka")*(A1>1978)*(D1="loris reggiani")),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E15,(B2:B15="rijeka")*(A2:A15>1978)*(D2:D15="loris reggiani")),5))
Level: medium
Question: What's the track for 1978?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1=1978),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E15,A2:A15=1978),2))
Level: medium
Question: What's the track for 1982?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,A1=1982),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E15,A2:A15=1982),2))
Level: medium