4 ms·

An image containing the back of the sign doesn't contain a sign. A sign is the front. The back is just a flat surface, not a sign.

• wellboy 9y ago
  But it's part of a sign and all things that are part of a sign, are signs. ;)
• wellboy 9y ago
  But it's part of a sign and all things that are part of a sign, as long as thry are attached to the sign, are signs. ;)