Table:
0
A
B
C
D
E
1
Name of System
Location
Traction Type
Date (From)
Date (To)
2
Nova Scotia Light and Power Company, Ltd
Halifax
Horse
11 Jun 1866 21 Oct 1886
17 May 1876 31 May 1896
3
Nova Scotia Light and Power Company, Ltd
Halifax
Electric
12 Feb 1896
29 Apr 1949
4
Pictou County Electric Company
New Glasgow - Trenton
Electric
10 Oct 1904
7 May 1931
5
Cape Breton Electric Company
Sydney
Electric
1901
Oct 1931
6
Cape Breton Electric Company
? North Sydney
Electric
1903
1929
7
Cape Breton Tramways Company, Ltd.
? Glace Bay
Electric
7 Jan 1908
1938
8
Cape Breton Tramways Company, Ltd.
? Sydney - Glace Bay
Electric
Oct 1902
15 May 1947
9
Yarmouth Light and Power Company
Yarmouth
Electric
26 Aug 1892
20 Oct 1928

Questions and formulas:
Question: What is the date (to) associated wiht a traction type of electric and the Yarmouth Light and Power Company system?
Formula: FILTER(E1,(C1="electric")*(A1="yarmouth light and power company"))
Formula2: FILTER(E2:E9,(C2:C9="electric")*(A2:A9="yarmouth light and power company"))
Level: easy