Need help to create assertion for the below requirement

In reply to dave_59:

Hi,

Actually if data_load changes between Sig1 and Sig2 posedges, then Sig3 must get asserted within let’s say 1 to 10 clocks.

to validate this spec,

I am capturing data_load when Sig1 asserted into local_data_load . Want to compare it until sig2 assereted with the running data_load.

If it changes I expected sig3 must be asserted.