She said consumers should be sure to read the fine print and understand how the cards work.

Red cards work in the same way as the 11-a-side game.

An irate man cut to the front of the line and yelled that his card wasn't working.

In fact, the city's proposed electronic fare cards might even be working.

The experiment is designed to make sure their competing cards will work in the same machines.

But what could she do, assuming that the cards worked?

But if that was the case, the key card shouldn't have worked.

That first card works just for girls, Mary said.

A green card with a time limit will not work at all.

The cards work together by splitting the screen in half.