THanks for the link to the bug Caarrie

As Prolix noted, that issue is slightly different, but some bugs that are exactly this one (e.g.
1413) were closed as duplicates, so that bug should fix this as well

.
Some (general) cases that plural goes wrong:
- when first part is made up of something, such as pile of dust, stack of newspapers, bottle of wine, etc. THese have of some where, not necessarilly second place (huge pile of dust, for example

)
- similar to first: things made by someone, or with other specification: book by me, letter of vigessimi, yellow statue with broken nose, broad sword of seduction. The latter is not a problem for the actual weapons (as plural is done for item part, not modifiers)
- words that have non-standard plurals, such as the already mentioned fish
