What is the hybridization around the indicated oxygen atom in the following anion? 
Definitions:
Converter
A device that changes the form of an electrical signal or power source, such as converting AC to DC or vice versa.
Inverter
An electronic device that converts direct current (DC) into alternating current (AC), commonly used in power supply applications and for converting solar panel output.
High-Voltage Distribution
A system designed to transmit electrical power over long distances at high voltages to minimize energy loss, typically involving power lines and substations.
Shell-Type
Referring to a design of transformer or other electromagnetic device where the windings are surrounded by a magnetic core, enhancing efficiency and concentrating the magnetic field.
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