ČSA Flight 540
ČSA Flight 540 was a regular international service from Prague to Tehran via Damascus and Baghdad . 
<triplet> Tehran <subj> Baghdad <obj> twinned administrative body <triplet> Damascus <subj> Baghdad <obj> twinned administrative body <triplet> Baghdad <subj> Tehran <obj> twinned administrative body <subj> Damascus <obj> twinned administrative body