x1 is a source language for Lojbanic gismu x2, contributing word x3 (zoi) to make it, which were adapted into the Lojban alphabet as x4 (lo'u or zoi), the language having weight in the algorithm x5 (li)
x1 is the ISO designation/result/standard/code for topic x2 applied to specific case/individual/group/thing x3 according to rule/ISO specification x4 published by/according to mandating organization x5 (default: ISO)
x1 is the ISO designation/result/standard/code for topic x2 applied to specific case/individual/group/thing x3 according to rule/ISO specification x4 published by/according to mandating organization x5 (default: ISO)
x1 is the IATA (International Air Transport Association) designation/result/standard/code for general subject type x2 (contextless default probably: airports) applied to specific case/entity/procedure/group/hub/terminus/location x3 according to rule/IATA specification/publication x4 published by/according to mandating organization x5 (default: IATA)
x1 is the ICAO (International Civil Aviation Organization; French: Organisation de l'aviation civile internationale, OACI) designation/result/standard/code for general subject type x2 (contextless default probably: airports) applied to specific case/entity/procedure/group/hub/terminus/location x3 according to rule/ICAO specification/publication x4 published by/according to mandating organization x5 (default: ICAO)
x1 is the IATA (International Air Transport Association) designation/result/standard/code for general subject type x2 (contextless default probably: airports) applied to specific case/entity/procedure/group/hub/terminus/location x3 according to rule/IATA specification/publication x4 published by/according to mandating organization x5 (default: IATA)