Table:
0
A
B
C
D
E
F
1
Name of System
Location
Traction Type
Date (From)
Date (To)
Notes
2
ATM (1897–1917) GTA (1919–1922)
Apeldoorn
Horse
12 August 1897
11 November 1917
Apeldoornsche Tramweg-Maatschappij
3
ATM (1897–1917) GTA (1919–1922)
Apeldoorn
Petrol (gasoline)
5 June 1919
8 October 1922
Gemeentetram Apeldoorn
4
ATM (1880–1911) GETA (1911–1944)
Arnhem
Horse
3 May 1880
12 June 1912
Arnhemsche Tramweg-Maatschappij
5
HSM (1883–1910) GT (1915–1922)
Groenlo
Steam
29 May 1883
31 December 1910
Hollandshe IJzeren Spoorweg-Maatschappij
6
HSM (1883–1910) GT (1915–1922)
Groenlo
Petrol (gasoline)
6 August 1915
Oct 1922
Groenlosche Tram
7
HSM (1883–1910) GT (1915–1922)
Groenlo
Horse
1917
1919
Temporary use of horses because of lack of petrol
8
NTM (1889–1912) M&W (1912–1921) GTN (1911–1955)
Nijmegen
Horse
1889
1911
Nijmeegsche Tramweg-Maatschappij
9
NTM (1889–1912) M&W (1912–1921) GTN (1911–1955)
Nijmegen
Steam
30 June 1889
31 December 1921
Stoomtram Maas en Waal
10
NTM (1889–1912) M&W (1912–1921) GTN (1911–1955)
Nijmegen
Electric
4 June 1911
20 November 1955
Gemeentetram Nijmegen Replaced by trolleybus
11
GTZ
Zaltbommel
Horse
14 March 1910
31 August 1923
Gemeentetram Zaltbommel

Questions and formulas:
Question: what is the date (from) where date (to) is 1919?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,E1="1919"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F11,E2:E11="1919"),4))
Level: medium
Question: how many times is the date (to) 1919?
Formula: ROWS(UNIQUE(FILTER(F1, E1="1919")))
Formula2: ROWS(UNIQUE(FILTER(F2:F11, E2:E11="1919")))
Level: medium
Question: what is the date (from) where the notes are apeldoornsche tramweg-maatschappij?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,F1="Apeldoornsche Tramweg-Maatschappij"),4))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F11,F2:F11="Apeldoornsche Tramweg-Maatschappij"),4))
Level: medium
Question: how many notes are form the date (from) 14 march 1910?
Formula: ROWS(UNIQUE(FILTER(F1, D1="14 March 1910")))
Formula2: ROWS(UNIQUE(FILTER(F2:F11, D2:D11="14 March 1910")))
Level: medium
Question: what is the location for the date (to) 8 october 1922?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,E1="8 October 1922"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F11,E2:E11="8 October 1922"),2))
Level: medium
Question: what are the notes for date (from) 12 august 1897?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,D1="12 August 1897"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F11,D2:D11="12 August 1897"),6))
Level: medium