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I. Lvg Command:

shell> lvg -f:w -F:1:2

II. Test Cases:

cancer, lung|cancer lung
Cancer, Lung|Cancer Lung
Lung Cancer|Cancer Lung
lung cancer|cancer lung
Lung lung LUNG|LUNG Lung lung
Cyclic AMP, 8-Bromo|8 AMP Bromo Cyclic
school nursing|nursing school
nursing school|nursing school
school nursing|nursing school
neck pain|neck pain
pain in the neck|in neck pain the
pain neck|neck pain
post partum|partum post
3-HYDROXY-3-METHYLGLUTARIQUE, ACIDE|3 3 ACIDE HYDROXY METHYLGLUTARIQUE
Cyclic AMP, 8-Bromo|8 AMP Bromo Cyclic
Anemia, Dyserythropoietic, Congenital|Anemia Congenital Dyserythropoietic
Alzheimer's disease, unspecified|Alzheimer disease s unspecified
Monkeys, Capuchin|Capuchin Monkeys
Mole, hydatidiform, invasive|Mole hydatidiform invasive