Need help with filling out the form I-485 for asylee derivatives

[narnat]

Hi there! I am filling out form i-485 for my spouse and child based on derivative asylum. I have recently got a green card. I am not sure what to put at two fields on the application:
Part 2. Application Type or Filing Category
(continued)
...
8.
Receipt Number of Principal's Underlying Petition (if any)
►
9.
Priority Date of Principal Applicant's Underlying Petition

I don't know what to put there, any ideas or help will be great!

[luckycharm4111]

Hi there! I am filling out form i-485 for my spouse and child based on derivative asylum. I have recently got a green card. I am not sure what to put at two fields on the application:
Part 2. Application Type or Filing Category
(continued)
...
8.
Receipt Number of Principal's Underlying Petition (if any)
►
9.
Priority Date of Principal Applicant's Underlying Petition

I don't know what to put there, any ideas or help will be great!

It seems like if they are on Asylee status then you don't have fill the Principal Applicant details.
Dependents and spouse will be filling Adjustment of Status by them self which will be Part 2 Question 3 and 4 will be filled by them with their own receipt numbers and priority date (if any)