singularize('slice') result in 'slouse'

[chaonan99]

I'm not a native English speaker, but I cannot find any evidence for singularize('slice') == 'slouse'.

[chaonan99]

Ok, I think the rule is if the word ends with 'ice' then the singularization is to change it to 'ouse'. But 'slice' is apparently an exception.

[chaonan99]

Another case: singularize('pasta') == 'pastum'