"Στερεό,υγρό και αέριο."

Translation: Solid, liquid, and gas.

[Edwin904807]

It counts a space after Στερεό as a mistake... Instead it wants a comma directly after, and without a space start with υγρό. That seems like a mistake :)

[alainPierrot]

could it be the adjective, so "gaseous"?

[fazulakis]

I agree

[thoas]

I would also interpret it as an adjective.

[Qazimustuf1]

Thx. Let me try

[Meowe3]

Do they not put spaces after commas in Greek?

[Mersini3]

Yes, they do. Μπορείς να δοκιμάσεις: Ναι, βάζουν

[jeanprendiville]

Remember the days of the "cats whiskers" subsequently the solid state radio or "stereo"?

[robert672165]

Learn something every day. I thought it referred only to sound or vision.
stereo- a combining form borrowed from Greek, where it meant “solid”, used with reference to hardness, solidity, three-dimensionality in the formation of compound words: stereochemistry; stereogram; stereoscope.

[pluureng]

Spaces are not needed after commas?

[Qazimustuf1]

Thanks all fellows to solve the ambiguity

[Lyazko]

The problem noted 2 years ago is still here.

See the screenshot: https://imgur.com/VTHWT3I

Hopefully someone can fix it. (Or explain to us why we're wrong)

[jaye16]

Yes, this is a glitch that was never resolved in spite of the reports we made. I've removed it from the course. Thanks for the screenshot. Warning it may take a few days before this sentence is no longer used so if you get it again don't be surprised...or just leave out the space and go on.