Interpolate curve connecting with points from other shapes

[acsr.00 (Catarina)]

Hi, I hope everyone is having an great day!
I´m sorry for any weird sentence, English is not my first language.

I´m having a problem with the interpolate.

I divided the lines that forms the oval shapes in three parts, i added a list item and i wanted to create a line with those set of points.

However, when i connect the list item to the interpolate it shows an error and when i flatten the list item points it connects with the other set of points from the other shapes.

How can i create a line with only the points shown in the list item?

Here is the Grasshopper document:
Textura_Ovais.gh (14.1 KB)

Thank you in advance!

[HS_Kim]

Is this what you are after?

Textura_Ovais_re.gh (24.3 KB)

[acsr.00 (Catarina)]

Thank you for the response!
Yes, is like that, but just for one of those lines

[HS_Kim]

Textura_Ovais_rev2.gh (21.1 KB)

[acsr.00 (Catarina)]

Yes, it works!!!
Thank you so much!