Complex sentence: The romanized spelling "Vientiane" is of French origin, and reflects the difficulty the French had in pronouncing the hard "ch" sound in of the Lao language; a common English-based spelling is "Viangchan", or occasionally "Wiangchan".
Split into simpler sentences: The romanized spelling "Vientiane" is of French origin, and reflects the difficulty the French had in pronouncing the hard "ch" sound in of the Lao language. A common English-based spelling is "Viangchan", or occasionally "Wiangchan".