Counting the number of repeated phrases in a column

["David G. Johnston" <david.g.johnston@xxxxxxxxx>]

On Wednesday, January 26, 2022, Shaozhong SHI <shishaozhong@xxxxxxxxx> wrote:

Whatever.   Can we try to build a regex for   'The City of London London Great London UK ' ?

Not even if you paid me.  I’d probably die before I succeeded if you tortured me.

David J.