given inputs:
loan_amount
property_value
max_LTV

and relationship:
max_LTV = loan_amount / property_value

Please write:
1. a  javascript function named "loan_amount_or_property_value" which checks if a value is provided for either loan_amount or property_value but not both and then, if a value is provided for loan_amount, calls a function named "loan_amount_calc" and, if a value is provided for property_value  and calls a function named "property_value_calc."
2. a javascript function named "loan_amount_calc" which takes only loan_amount and max_LTV and returns property_value 
3. a javascript function named "property_value_calc" which takes only property_value and max_LTV and returns loan_amount
4. a  javascript function named "loan_amount_and_property_value" which checks if a value is provided for both loan_amount and property_value and then, if a value is provided for both, returns "LTV too high" if loan_amount / property_value > max_LTV and returns "LTV good" if loan_amount / property_value <= max_LTV The response should be in all capital letters.
user