Matches in DBpedia 2014 for { ?s ?p <http://dbpedia.org/resource/Category:Helium> . }
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- Alpha_particle subject Category:Helium.
- Chayanda_field subject Category:Helium.
- Heliox subject Category:Helium.
- Helium subject Category:Helium.
- Helium_atom subject Category:Helium.
- Helium_hydride_ion subject Category:Helium.
- Helium–neon_laser subject Category:Helium.
- Hydreliox subject Category:Helium.
- Isotopes_of_helium subject Category:Helium.
- Liquid_helium subject Category:Helium.
- National_Helium_Reserve subject Category:Helium.
- Norman_Lockyer subject Category:Helium.
- Pierre_Janssen subject Category:Helium.
- RasGas subject Category:Helium.
- Rollin_film subject Category:Helium.
- Trimix_(breathing_gas) subject Category:Helium.
- Category:Isotopes_of_helium broader Category:Helium.