With no explanation, label each line with "O", "person-scholar", "organization-education", "art-broadcastprogram", "art-film", "art-music", "art-other", "art-painting", "art-writtenart" or "building-airport" preceded by ":".
Georgiev
had
lectures
in
the
Technical
University
of
Varna
about
Electronic
Components
,
Semiconductors
,
Design
and
technology
of
electronic
equipment
and
Design
and
technology
of
communication
equipment
.
Georgiev:person-scholar
had:O
lectures:O
in:O
the:O
Technical:organization-education
University:organization-education
of:organization-education
Varna:organization-education
about:O
Electronic:O
Components:O
,:O
Semiconductors:O
,:O
Design:O
and:O
technology:O
of:O
electronic:O
equipment:O
and:O
Design:O
and:O
technology:O
of:O
communication:O
equipment:O
.:O