החיפוש שביצעת - information agents using definition ((((from liberia) or (from linear))) or (from siberia)) - חזר ריק.

אולי כדאי לנסות איות אחר או כתיב מלא:
information agents » information age, information access, information about
using definition » sensing definition, aging definitions, timing definition
from liberia » from nigeria, from liver, from libya
from siberia » from nigeria, from sierra, from serial

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