The "yes" and "no" vote refers to two different issues.
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The first issue is the Aboriginal and Torres Strait Islander Voice to Parliament Referendum in Australia. A "yes" vote means supporting the establishment of an Aboriginal and Torres Strait Islander Voice in the constitution, which would be a permanent body that cant be removed without another referendum. The Voice would provide opportunities for Aboriginal and Torres Strait Islander communities to inform policy and legal decisions that affect them, enabling self-determination and practical change. A "no" vote means opposing the establishment of the Voice to Parliament.
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The second issue is Issue One in Ohio, USA. A "yes" vote means raising the threshold to change the state constitution from a simple majority (50% plus one vote) to at least 60%. This would make it harder to enact any kind of meaningful change. A "no" vote means keeping the threshold at a simple majority.
It is important to note that these are two separate issues and are not related to each other.