Which of the following condensed formulas represents the same compound as the line-angle structure shown? 
Definitions:
Anterograde Amnesia
An inability to form new memories following an event that caused the amnesia, even though recall of past events may be unaffected.
Retrieval Failure
The inability to recall information from the memory storage despite it being available and stored.
Capital of Spain
Madrid, which is the largest city of Spain and serves as its political, economic, and cultural center.
Implicit Memory
This memory allows for the accomplishment of tasks without active consciousness of the experiences that have shaped these actions.
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