how many cities are represented in the intersecting highway category?
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col : km | municipality | location | interescting highway | notes row 1 : 0 | canada-united states border | canada-united states border | nd 18 – cavalier, larimore | pth 30 begins row 2 : 3 | r.m. of rhineland | gretna | pr 243 east – emerson | begin pr 243 west concurrence row 3 : 5 | r.m. of rhineland |  | pr 243 west – blumenfeld | end pr 243 west concurrence row 4 : 10 | r.m. of rhineland |  | pr 421 east – sommerfeld |  row 5 : 14 | r.m. of rhineland | altona | pr 201 west – brown, windygates, snowf | begin pr 201 east concurrence row 6 : 18 | r.m. of rhineland |  | pr 201 east – letellier, dominion city, | end pr 201 east concurrence row 7 : 25 | r.m. of rhineland | rosenfeld | pth 14 – morden, winkler, plum coule | pth 30 ends\nhighway continues as pr 332
how many cities are represented in the intersecting highway category?
km Municipality Location Interescting highway Notes
0 Canada-United States border Canada-United States border ND 18 – Cavalier, Larimore PTH 30 begins
3 R.M. of Rhineland Gretna PR 243 east – Emerson begin PR 243 west concurrence
5 R.M. of Rhineland PR 243 west – Blumenfeld end PR 243 west concurrence
10 R.M. of Rhineland PR 421 east – Sommerfeld
14 R.M. of Rhineland Altona PR 201 west – Brown, Windygates, Snowflake begin PR 201 east concurrence
18 R.M. of Rhineland PR 201 east – Letellier, Dominion City, Stuartburn end PR 201 east concurrence
25 R.M. of Rhineland Rosenfeld PTH 14 – Morden, Winkler, Plum Coulee, Morris\n PR 332 north – Lowe Farm, Brunkild, Starbuck PTH 30 ends\nhighway continues as PR 332
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