Define a simple set of e-commerce shipping rules in Python. Example: Free shipping for orders above $100, $5 flat rate for standard shipping, and $15 for express shipping. Print the shipping cost for 3 example orders.

Define a functioncalculate_shipping(order_amount, shipping_type) that takes two inputs:
- order_amount (total order value)
- shipping_type (either “standard” or “express”).
Add conditions for shipping rules:
- If order_amount > 100, shipping cost = 0 (Free shipping).
- Else if shipping_type == "standard", shipping cost = 5.
- Else if shipping_type == "express", shipping cost = 15.
Return the shipping cost from the function.
Test with 3 example orders:
- Example 1: $120 with standard shipping → should be Free ($0).
- Example 2: $50 with standard shipping → should be $5.
- Example 3: $80 with express shipping → should be $15.
Print results for each example order.

Taza Mind