Premise: To celebrate Bastille Day (14 July) or the 1944 Liberation (25August), blue, white, and red laser beams are bounced off the Eiffel Tower, Arc de Triomphe, and H??tel de Ville.

Hypothesis: The city has a festive air on Bastille Day and 1944 Liberation Day, with many people and families celebrating in the streets.
Relation: neutral