Disambiguation evidence for Luna 21 via surface form

"Luna 21"

Triples (4)

Triples where some other subject referred to this entity as "Luna 21".

Luna spacecraft → hasPart →
"Luna 21"
↳ resolves to Luna 21
ⓘ
Luna 20 → followedBy →
"Luna 21"
↳ resolves to Luna 21
ⓘ
Luna Ye-8 series → notableSpacecraft →
"Luna 21"
↳ resolves to Luna 21
ⓘ
Luna Ye-8 series → roverMission →
"Luna 21"
↳ resolves to Luna 21
ⓘ