Stuck at a problem.

[akanimax]

I looked everywhere but, couldn't find proper resources for this library. Finally, I am writing this as an issue.
I am using this library with your quepy library for converting questions into sparql queries. @rafacarrascosa could you help me out with the regexes of the following questions:

1. Who is ("Proper noun Name")?
2. What is ("Someone's") lastname?
3. What is (<employee_id>'s) hiredate?
4. What is (<employee_id>'s) position?
   ** (advanced): 5) How many were hired before some ?
   Please note, I am going to write the dsl for these in quepy. I am unable to do so right now, because I am not getting the regex correct in the first place.