Table:
0
A
B
C
D
E
1
Pick #
CFL Team
Player
Position
College
2
45
Hamilton Tiger-Cats
Justin Shakell
DL
Wilfrid Laurier
3
46
Calgary Stampeders
Andrew Gallant
SB
St. Francis Xavier
4
47
Ottawa Renegades
Christian Heffernan
SB
Western Ontario
5
48
Toronto Argonauts
Brandan Mahoney
WR
Simon Fraser
6
49
BC Lions
Billy Palmer
TE
Notre Dame
7
50
Montreal Alouettes
Landon White
DB
Alberta
8
51
Winnipeg Blue Bombers
John Sullivan
S
Waterloo
9
52
Montreal Alouettes
Steven Frake
DB
Wilfrid Laurier
10
53
Edmonton Eskimos
David Thorne
OL
Mount Allison

Questions and formulas:
Question: What college did john sullivan attend?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:E1,C1="john sullivan"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:E10,C2:C10="john sullivan"),5))
Level: medium