QUES: Austrian Crystal JewelryAustrian Crystal Earrings18mm White Color Irregular Shape Austrian Crystal Earrings

correct the punctuation.

CORRECTED: Austrian Crystal Jewelry--Austrian Crystal Earrings--18mm White Color Irregular Shape Austrian Crystal Earrings

QUES: The ufologist here are generally optimistic and believe that this time X will be a great opportunity to cultural and technological between the two civilizations

correct the punctuation.

CORRECTED: The ufologist here are generally optimistic and believe that this time X will be a great opportunity to cultural and technological between the two civilizations.

QUES: One major challenge in railway vehicles is to reliably distribute the increasing volumes of data

correct the punctuation.

CORRECTED:
One major challenge in railway vehicles is to reliably distribute the increasing volumes of data.