Possible errors in the exercise & grammar question

Question

Hi there!
Just a few things I noticed about this exercise that may be errors:
1) One sentence to be translated had "...Œil de Lynx (Eagle Eye)..." but then did not translate "Eagle Eye".
2) In the sentence with "...la cape noire à doublure rouge..." a lesson was provided below for compound nouns formed with prepositions. However, that lesson does not explain this grammar issue, and it seems to me that this is not technically a compound noun...perhaps a different grammar rule would explain this? (For example "a frying pan" would be a compound noun but "a black pan with a red handle" would not be, I believe).
Finally, a grammar question: What is the difference between the usage of seul and seulement? (I'm wondering why saying "Seulment le journalist" in the third to last sentence is incorrect).
Merci!

Cécile Janty-Davies · Accepted Answer

Hi Avery, 
1. Œil de Lynx is like a proper name here, so wouldn't normally be translated, but having checked ( Eagle Eye) is given in brackets.
2. 'La cape noire à doublure rouge' doesn't constitute a compound noun, it just describes the black cape which has a red lining.
It could have been -
La cape verte à pois rouges = the green cape with red spots
La cape rouge à rayures blanches = the red cape with white stripes 
La cape noire à volants en dentelle = the black cape with lace frills
etc.

Jim Jones · Answer

I haven't read the text that you are querying but with respect to the difference between "seul" and "seulement"     ---  Seul is an adjective whereas seulement is an adverb.

Avery Enns · Answer

Thanks for clarifying that last point Jim!

Chris Wirt · Answer

Seul is frequently used as an adverb, too.

Robert Adler · Answer

.