Combining lyrics lines

Le 17/03/2012 11:14, Reedmace Star disait :

In the first line, Alice and Eve alternate strictly in singing, so their
lyrics get collapsed:

   ALICE EVE ALICE EVE
   maybe that the second words are

After the manual line break, Alice cuts off Eve with a bit of overlap.
Their lyrics stay on different lines, which makes sense:

   EVE ALICE
                 Shut up, you fool!
   ...and then I was like-

I wished I had found it myself...

Would be worth a "selected snippet" in NR 2.1.2 Techniques specific to lyrics, Placing lyrics vertically?

http://lists.gnu.org/archive/html/lilypond-user/2012-03/msg00508.html

Cheers,
Jean-Charles