Light Challenge: Marching Ants.....problem

Hello All

My daughter was working her way through the Light challenges when she got stuck on the Marching Ants challenge.

She is asked to type if True:

Then asked to type something to make all the lights go red (without making it clear whether this was on the same line or not). Anyway once we realised that it needed to be on the same line, we had a red ring of lights but the app did not give us the option to move on to the next step.

Any ideas?

Thanks