What is an exact order of events Positions.* and PendingOrders.*

The current position is flat. No pending order. The account is NETTING.
Current price is 10.

There are 6 event handlers. All not relevant details are missed. Sleep(100ms); means some long time to handle an event.

Positions.Opened += (...) => { Print ("Position opened "+ PositionSize); Sleep(100ms);};
Positions.Modified += (...) => { Print ("Position modified "+PositionSize); Sleep(100ms);};
Positions.Closed += (...) => { Print ("Position closed"); Sleep(100ms);};;
PendingOrders.Filled += (..) =>{ Print ("Filled" + OrderComment); Sleep(100ms);};
PendingOrders.Cancelled += (...) =>{ Print ( "Cancelled" +OrderComment); Sleep(100ms);};
PendingOrders.Created += (...) =>{ Print ("Created" +OrderComment); Sleep(100ms);};

Somewhere in the bot 4 orders with the comment were placed. No error:

PlaceLimitOrder (Sell, 1 lot @ 23, "It is the ORDER 1")         
PlaceLimitOrder (Sell, 10 lots @ 23, "It is the ORDER 2")
PlaceLimitOrder (Sell, 100 lots @ 23, "It is the ORDER 3")
PlaceLimitOrder (Sell, 1000 lots @ 23, "It is the ORDER 4")

Print("all orders are placed. ****")

I am expecting to see these lines as an output:

Created It is the ORDER 1
Created It is the ORDER 2
Created It is the ORDER 3
Created It is the ORDER 4
all orders are placed. ****

The market moves from the price 10 to 30 with a gap. All orders should be filled. Assume all of them are filled at the same price 23

What is an exact order of calling PendingOrders.Filled and Positions.Opened and Positions.Modified
What is an expected output of this code, please?


Thank you!