why would this be incorrect for #4?

A pet adoption center with at least ten years of continuous operations will be supported by the Mittens Foundation if it shelters more than fifty animals.

50+A and 10+yr -> be supported

/bS -> 50+ or 10 yr

I agree with many others, these examples tripped me up and didn't really seem to mesh with the starting example? Would love another addition to this that goes further into this idea bc you've lost me.