They all end in 'ion', 'i-o-n' at the end, and that means that we have the penultimate syllable being stressed which means the second-to-last syllable is stressed.
The Pope made his appeal on the penultimate day of his visit to Poland at an open-air vigil attended by about 1.5 million people in a field near Krakow.
Did you hear the difference? When we say adjectives that end with i-c, the stress falls on the penultimate syllable, that's the syllable just before the last one. So it's geography, but geographic.
In a series of three or more items, should there be a comma after the penultimate item? Or... Meh Two schools of thought: The pro Oxford Commanists and The Anti Commas meet today to finally decide its fate.