The 15 triplets listed below were created by dividing each
of 5 not-so-common 9-letter words - each into 3 parts:

QUA, SUN, UAC, LLE, QUA,
ALL, SQU, LOQ, ITY, ARE,
AQU, UNE, LED, VIA, DRI.

You are requested to
- reconstruct the original words
- provide a short comment on each
- discover one common feature, present in all five.

Have fun!