---

from collections import Counter

def word_frequency(text):
    words = text.lower().split()
    return Counter(words)


print(word_frequency("Python is great and python is easy"))

def filter_data(data, min_age, max_salary):
    return [
        person
        for person in data
        if person['age'] >= min_age
        and person['salary'] <= max_salary
    ]


people = [
    {"name": "Alice", "age": 25, "salary": 4000},
    {"name": "Bob", "age": 19, "salary": 2500},
    {"name": "Charlie", "age": 30, "salary": 6000},
]

print(filter_data(people, 21, 5000))