Disambiguation evidence for Norma–Cygnus Arm via surface form

"Norma–Outer spiral arm"

Triples (1)

Triples where some other subject referred to this entity as "Norma–Outer spiral arm".

Norma–Cygnus Arm → alternativeName →
"Norma–Outer spiral arm"
↳ resolves to Norma–Cygnus Arm
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