In a large residential building, there is a rule that no pets are allowed. █ █████ ██ ███ ██████ █████ ██ ██████ ████ ████ ███ ███████ ███ █████████████ █████████ ████████ ██ ███ ████████████ ███████████ ██████ ████ ████ ██ █ █████ ██ ███████ ███ ██████ ███ ██████████ ██ ██ ███████ ██ ███ ███████ ██ █ ████████ ██ ██████ █ ████ ████ ███ ████████ ██████ ██ ███ ██ █ ████████ ████ ██ ███ ███ ███████ ██ ███ █████████ ██ ███████ ████ ███ ███ ██████ ████ █████ ████ ██ █████ ████████ ██ ███ ████████ ██ ███ ████████
We're told that a residential building has a rule banning pets, and that a group of pet lovers living in the building failed to get the rule changed. The stimulus then explains the process for changing the rules in the building: tenants who want to change a rule have to get signatures from 10 percent of the building's tenants, after which their proposal will be put to a majority vote. The stimulus then concludes that the pet lovers' petition must have been voted down by a majority of tenants.
The stimulus concludes that since the pet lovers' proposed rule change wasn't implemented, they must have been voted down by a majority of tenants. This assumes that a vote happened in the first place. But remember that the stimulus doesn't say a vote is guaranteed. It says a vote on a rule change occurs only if 10 percent of tenants sign the petition:
vote → 10 percent sign
It's possible the pet lovers' proposed rule change wasn't implemented because they couldn't get enough signatures and never got to the voting stage. But since the stimulus assumes there was a vote, the stimulus necessarily assumes the pet lovers got at least 10 percent of tenants to sign their petition.
The argument depends on which ███ ██ ███ █████████ ████████████
The pet lovers █████████ ██ █████████ ███ ██████████ ██ ██ ███████ ██ ███ ███████ ██ █████ █████████
The signatures of ████ ████ ██ ███████ ██ ███ ███████ ████ ████████ ██ ███ ███ █████████ █████████
Ninety percent of ███ ███████ ███ ███████ ████████ ███ ████ ██████████ █████
The support of ██ ███████ ██ ███ ███████ ███ █ ████ ██████ ███████ ████ ███ ████ ██████ ████ ██ ████████
The failure of ███ ███ ██████ ██ ██████ ███ ██████████ ██ ██ ███████ ██ ███ ███████ ██ █████ ████████ ███ █ ████ ██████ ███████ ████ ███ ████ ██████ ████ ██ █████ ████ ██ █ ████████ ██ ███ ████████