useless trivia: What Word Means: A Central American Timber Tree?

Questions

In 1982 ---------- leaves Lebanon?

In 1982 Palestinian Liberation Organization leaves----------?

In 1983 Korean ---------- strays into Siberia and is shot down by a Soviet jet?

In 1983 Korean Boeing 747 strays into ---------- and is shot down by a Soviet jet?

In 1983 Korean Boeing 747 strays into Siberia and is shot down by a ---------- jet?