I think both "that" and " possessive 's" are correct. But which is better style and why? I learned that being concise is considered better style. The possessive 's is more concise and so better?
The system in Paris opened in 1900 and Tokyo’s opened in 1927.
The system in Paris opened in 1900 and that in Tokyo opened in 1927.
Compared with the two networks mentioned above, Washington DC's is relatively long, at 126 kilometers.
Compared with the two networks mentioned above, that in Washington DC is relatively long, at 126 kilometers.