yes, no, maybe.
Here’s what I see on a sidewalk:
9-11 Was an Inside Job
(whatever9-11Conspiracywebsiteitis.com)
No It Wasn’t.
The “No it wasn’t” chalked in a different handwriting, of course, and in purple instead of white (as are the lines crossing out the original message).
I will be sure to note if s/he crossed out every other chalked 9/11 Truth advertisement.