Filter out acronyms and abbreviations

I. Lvg Command:

shell> lvg -f:fa -F:1:2 -n

II. Test Cases:

WACTA|WACTA
ABBA|-No Output-
AIDS|-No Output-
COLD|-No Output-
Austrian|Austrian
otitis|otitis
ER|-No Output-
MD|-No Output-
USA|-No Output-
APT|-No Output-
APT's|-No Output-
APTs|-No Output-
Amoeba|Amoeba
Ancylostoma|Ancylostoma
Argentine|Argentine
Artiodactyla|Artiodactyla
Aryan|Aryan
Austrian|Austrian
Austrians|Austrians
Baker|Baker
Bakers|Bakers
Bantu|Bantu
Bantus|Bantus
Basedow's disease|Basedow's disease
Belgian|Belgian
Belgians|Belgians
Bible|Bible
Bibles|Bibles
Brazilian|Brazilian
Brazilians|Brazilians
British|British
Brown|Brown
Browns|Browns
Burmese|Burmese
Burmeses|Burmeses
Canadian|Canadian
Canadians|Canadians
Candida|Candida
Caucasian|Caucasian
Caucasian|Caucasian
Caucasians|Caucasians
Caucasians|Caucasians
Cesarean|Cesarean
Cesarean|Cesarean
Cesarean|Cesarean
Chagas' disease|Chagas' disease
Chagas' diseases|Chagas' diseases
Chelonia|Chelonia
Chinese|Chinese
Congress|Congress
Congressional|Congressional
Conservative|Conservative
Conservatives|Conservatives
Crithidia|Crithidia
Cushing's Syndrome|Cushing's Syndrome
Czech|Czech
Czechs|Czechs
Deiters' nuclei|Deiters' nuclei
Deiters' nucleus|Deiters' nucleus
Deiters' nucleuses|Deiters' nucleuses
Demodex|Demodex
Digitalis|Digitalis
Dutch|Dutch
EMIT|-No Output-
English|English
Eurasian|Eurasian
Eurasians|Eurasians
FAME|-No Output-
FAME's|FAME's
FAMEs|FAMEs
Father|Father
Fathers|Fathers
Flemish|Flemish
French|French
Gaelic|Gaelic
Gay|Gay
Gays|Gays
Good|Good
Goods|Goods
Grace|Grace
Grace|Grace
Grace|Grace
Grey|Grey
Greys|Greys
Gynecologist|Gynecologist
Gynecologists|Gynecologists
Hebrew|Hebrew
Hebrews|Hebrews
Ilia|Ilia
Ilium|Ilium
Iliums|Iliums
Inquisition|Inquisition
Iranian|Iranian
Iranians|Iranians
Iraqi|Iraqi
Iraqis|Iraqis
Irish|Irish
Israeli|Israeli
Israelis|Israelis
Japanese|Japanese
Jew|Jew
Jews|Jews
Jolly|Jolly
Jolly's|Jolly's
Jollys|Jollys
Listeria|Listeria
Lithuanian|Lithuanian
Lithuanians|Lithuanians
MUD|-No Output-
MUD's|MUD's
MUDs|MUDs
Malay|Malay
Malays|Malays
Manx|Manx
Memorial|Memorial
Mongolian|Mongolian
Mongolians|Mongolians
Mycoplasma|Mycoplasma
Nazi|Nazi
Nazis|Nazis
Negro|Negro
Negroes|Negroes
Negros|Negros
Nessler's reagent|Nessler's reagent
Nigerian|Nigerian
Nigerians|Nigerians
Nonconformist|Nonconformist
Nonconformists|Nonconformists
North|North
North|North
North|North
Northeastern|Northeastern
Northwest|Northwest
Norwegian|Norwegian
Norwegians|Norwegians
O.K.'d|O.K.'d
O.K.'ing|O.K.'ing
O.K.'s|-No Output-
OK'd|OK'd
OK'ing|OK'ing
OK's|-No Output-
Paget's disease|Paget's disease
Paget's diseases|Paget's diseases
Pneumocystis|Pneumocystis
Portuguese|Portuguese
Potter|Potter
Potters|Potters
Puerto Rican|Puerto Rican
Republican|Republican
Republican|Republican
Republicans|Republicans
Republicans|Republicans
Romanian|Romanian
Romanians|Romanians
Scotch|Scotch
Senator|Senator
Senators|Senators
South|South
Southwest|Southwest
Soviet|Soviet
Soviets|Soviets
Spanish|Spanish
Streptothrix|Streptothrix
Taenia|Taenia
Welsh|Welsh
Young|Young
Youngs|Youngs
adaptable|adaptable
altruistic|altruistic
antivenom|antivenom
atrophies|atrophies
biodegrading|biodegrading
calories|calories
chemist|chemist
cocultivations|cocultivations
concuss|concuss
coolest|coolest
cyclothymiacs|cyclothymiacs
delimit|delimit
detectors|detectors
disheartenment|disheartenment
duodenoscopic|duodenoscopic
embarrassing|embarrassing
epispadiac|epispadiac
exhibitionist|exhibitionist
faults|faults
foreknowing|foreknowing
gesticulated|gesticulated
heed|heed
hydroxylates|hydroxylates
immunodiagnosis|immunodiagnosis
infants|infants
interrelated|interrelated
kyphoses|kyphoses
loamiest|loamiest
marshes|marshes
microelectrophoresis|microelectrophoresis
motivating|motivating
nephroses|nephroses
occlusion|occlusion
overexposure|overexposure
paying|paying
phonic|phonic
polymerization|polymerization
prided|prided
public|public
reaffirming|reaffirming
reiterates|reiterates
retaliate|retaliate
saluretic|saluretic
sequestration|sequestration
solemnly|solemnly
steam|-No Output-
superfusing|superfusing
tenotomize|tenotomize
tranquillize|tranquillize
unavailable|unavailable
verbal|verbal
yellowness|yellowness