Write a program to convert English units to metric (e.g., miles to kilometers, gallons to liters, etc.). Include a specification and a code design.

 Specification:

• The program will take in a number and a unit of measurement in English (e.g., miles, gallons) as input.
• The program will output the equivalent value in the corresponding metric unit (e.g., kilometers, liters).
• The program will handle the following units of measurement: miles, feet, yards, inches, gallons, and pounds.

Code Design:

1. Create a dictionary that maps English units to their metric equivalents (e.g., "miles" to "kilometers").
2. Take in the number and unit of measurement as input.
3. Use the input unit of measurement as a key to look up the corresponding metric unit in the dictionary.
4. Convert the input number to the correct metric value by multiplying it by the appropriate conversion factor (e.g., 1 mile = 1.609 kilometers).
5. Print the input number and input unit of measurement, followed by the equivalent metric value and unit of measurement.

[code type="Code"] conversions = { "miles": 1.609, "feet": 0.3048, "yards": 0.9144, "inches": 0.0254, "gallons": 3.785, "pounds": 0.4535 } def convert_unit(value, unit): metric_unit = conversions.get(unit) if metric_unit: metric_value = value * metric_unit print(f"{value} {unit} is equivalent to {metric_value} {metric_unit}") else: print(f"{unit} is not a valid unit of measurement.") value = float(input("Enter the value:")) unit = input("Enter the unit of measurement:") convert_unit(value, unit) [/code]

Please note that the code above is a basic example and it is not handling all edge cases (e.g input validation), it's just to give you an idea of how it could be implemented.