This is what it says in the instructions for the placeholder "proof of relationship":
You must provide proof of your relationship with your host or family member. This can include:
a marriage certificate
Statutory Declaration of Common-Law Union (IMM5409)(Opens a new window)
a birth certificate
an official document naming you as a parent
a copy of the inside back cover of the inviter's passport showing the inviter's parents, if applicable
Does it mean I need to submit proof of relationship as the primary applciant's wife or as a sibling having another sibling who is a Canadian PR, or both?
You must provide proof of your relationship with your host or family member. This can include:
a marriage certificate
Statutory Declaration of Common-Law Union (IMM5409)(Opens a new window)
a birth certificate
an official document naming you as a parent
a copy of the inside back cover of the inviter's passport showing the inviter's parents, if applicable
Does it mean I need to submit proof of relationship as the primary applciant's wife or as a sibling having another sibling who is a Canadian PR, or both?