Change Two Of Four

mean - nest

nest - name..

nest - oust

oust = busy

busy = bunt..

bunt - nest

nest - same..

same - melt

melt - mean..

mean - nest

nest - sore..

sore - reap

reap ... dope

dope - dent..

dent - deal...

deal - lent..

lent - nape

nape - poke..

poke - lock

lock - loan..

loan - nope

nope - nets..

nets - stow

stow - soak..

soak - boat

boat - bone..

bone - nest

nest - temp..

temp - malt

malt - main..

main - nice

nice - city..

city - they

they - tile..

tile - leap

leap - pant..

pant - tone

tone - nape..

nape - pelt

pelt - play..