instead of; in place of; as a substitute for; in exchange for; in return for; to make up for
to succeed; to relieve; to take the place of; to substitute for; to be exchanged; to change (places with)
instead; but (on the other hand)
substitute; replacement; stand-in; proxy; compensation; exchange
another helping; second helping; seconds; command to have dog place its second paw in one's hand
to change places; to relieve one another; to replace someone
substitution; replacement; shifting; change
to alternate; to take turns
change for the better; improvement; looking better (than before)
alternating; taking turns
to relieve each other; to take turns (to do)
alternately; in turn; one after the other
substitute actor; stand-in; double
alternating; taking turns
to fall out and be replaced; to shed; to moult (molt)