Requesting a million addresses

1. Given an array of 1,000,000 URLs, each returning a set of item_id.
2. For each obtained item_id, requests need to be made to three separate services: service1, service2, and service3.
3. Responses from these services are processed by the business_logic function, which forms the final result.
4. All obtained results are collected into the final list.

from typing import List

# Sample input data:
# format: url, request_data
requests_samples = [
    ('http://some-service/getItems/', {'user_id': 100}),
    ('http://some-service/getItems/', {'user_id': 101}),
    ...
]

# Services to query
service_1_url = 'http://service1/fillItems/'
service_2_url = 'http://service2/scoreItems/'
service_3_url = 'http://service3/logItems/'

# Function to process service responses
def business_logic(service1_response, service2_response, service3_response):
    # This function does not make network calls, only processes responses
    # Assume it is already implemented
    return {}

# Workflow:
# 1. Get item_ids from each request to 'some-service/getItems'
# 2. For each item_id, send independent requests to service_1_url, service_2_url, service_3_url
# 3. Process results through business_logic
# 4. Collect all results into the final list

def gather_data(requests: List[tuple]) -> List[dict]:
    # YOUR CODE HERE
    pass