<human>: Does the sentence "Of greater potential was the GL (Gunlaying) radar and searchlights with fighter direction from RAF fighter control rooms to begin a GCI system (Ground Control-led Interception) under Group-level control (No. 10 Group RAF, No. 11 Group RAF and No. 12 Group RAF)." answer the question "Gunlaying radar and RAF controls combined to create what system?"

OPTIONS:
- yes
- no
<bot>: yes