[BangPypers] nested list question

[Vikram]

Suppose you have two nested lists, X and Y. 
A sample element of X is: 
['NM_032291', '67000041', '67000051', 'chr1', '+']

Another sample element of X is:
['NM_001097', '51183080', '51183635', 'chr22', '+']


A sample element of Y is:
['chr1', '67000046']

Another sample element of Y is:
['chrY', '59033300']

The objective is to identify whether the second element of an element of Y (e.g. 67000046) lies between the the second and third elements of an element of X (e.g. 67000041 and 67000051).

Eventually, one should end up with a modified version of Y, let us say modY, which is a filtered version of Y in which the second element of an element of modY is contained within the second and third elements of an element of X.

Any suggestions on how i should be going about implementing this?

Thanking you,
Vikram