One question per day — a logic puzzle

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The general idea of the question is as follows: A certain unit’s oil supply system is equipped with one turbine pump and one electric pump P1. Under normal conditions, the turbine pump operates while pump P1 serves as a backup. When the oil pressure drops or the turbine pump stops suddenly, a logic circuit is used to send an open contact signal that activates pump P1 electrically. The low oil pressure detection logic is a two-of-three logic, using normally closed contacts that open when the oil pressure is low. Please draw a complete logic diagram for an auto-starting pump, taking into account actual application scenarios. This should include the button HS1 for manually starting the pump, the button HS2 for manually stopping it, and the output relay or coil, denoted as ROUT. Draw the logic ladder diagram. That’s the title; everyone can draw it on paper, take a photo of it and upload it. It’s a bit troublesome, so I hope everyone will discuss it among themselves. The diagram shows the labels for the contacts and relays. Thank you!