The ability to milk her could save the life of a premature or weak baby who is unable to stand and nurse in the first few days.
(The ability to milk her; could save; the life of a premature or weak baby) (a premature or weak baby; is; unable to stand and nurse in the first few days)
The ability to milk her a premature or weak baby
could save is
the life of a premature or weak baby
unable to stand and nurse in the first few days