2

{{#subobject:004
|A=a4
|B=b4
|C=c4
|@sortkey=D
}}
{{#subobject:000
|A=a0
|B=b0
|C=c0
|@sortkey=A
}}
{{#subobject:003
|A=a3
|B=b3
|C=c3
|@sortkey=C
}}
{{#subobject:001
|A=a1
|B=b2
|C=c3
|@sortkey=B
}}
{{#subobject:002
|A=a2
|B=b2
|C=c2
|@sortkey=S
}}

Query

{{#ask:
 [[-Has subobject::{{FULLPAGENAME}}]]
 |?A
 |format=broadtable
 |link=
 |headers=show
 |searchlabel=… mais resultados
 |class=sortable wikitable smwtable
 |outsep=, 
 |sort=A
}}

	A
Jaideraf/Sandbox/2#000	A0
Jaideraf/Sandbox/2#001	A1
Jaideraf/Sandbox/2#002	A2
Jaideraf/Sandbox/2#003	A3
Jaideraf/Sandbox/2#004	A4