"KIOM" AS A RELATIVE ADVERB.
164. The interrogative adverb "kiom" (140) is used as a relative adverb
of quantity, with "tiom" or some equivalent word or phrase for its
antecedent. In this use it is commonly translated "as":
La taso enhavis tiom da kafo, kiom mi povis trinki,
the cup contained as much coffee as I could drink.
Mi havos tiom da tempo, kiom mi bezonos,
I shall have as much time as I shall need.
Li sendis tiom, kiom vi volis, he sent as much as you wished.