using System;
using System.Collections.Generic;
using System.Linq;
using static System.Math;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            A();
        }

        static void A()
        {
            var NQ = ReadSplitInt();
            var N = NQ[0];
            var Q = NQ[1];

            var ab = new List<long>[N+1];
            for (int i = 0; i <= N; i++)
            {
                ab[i] = new List<long>();
            }

            for (int i = 0; i < N-1; i++)
            {
                var o = ReadSplitInt();
                ab[o[0]].Add(o[1]);
            }

            var PX = new List<List<long>>();
            var dict = new Dictionary<long, long>();
            for (int i = 0; i < Q; i++)
            {
                var px = ReadSplitLong();
                if (dict.ContainsKey(px[0]))
                    dict[px[0]] += px[1];
                else
                    dict.Add(px[0], px[1]);

                PX.Add(px);
            }

            Action<long, long> func = null;

            var ans = new long[N + 1];
            func = (i, value) =>
            {
                if (dict.ContainsKey(i))
                    value += dict[i];

                ans[i] += value;
                foreach (var a in ab[i])
                {
                    func(a, value);
                }
            };

            func(1, 0);

            for (int i = 1; i < ans.Length; i++)
            {
                if (i == ans.Length - 1)
                    Print(ans[i]);
                else
                    Print(ans[i] + " ");
            }

            Println("");
        }

        static List<long> ReadLines(long n)
        {
            var l = new List<long>();
            for (long i = 0; i < n; i++)
            {
                l.Add(ReadLong());
            }
            return l;
        }

        static void YESOrNO(bool e) => Println(e ? "YES" : "NO");

        static void YesOrNo(bool e) => Println(e ? "Yes" : "No");

        static IEnumerable<int> Range(int start, int stop)
        {
            if (start < 0 || stop < 0 || start > stop || (start <= 0 && stop <= 0))
                return new List<int>();

            return Enumerable.Range(start, stop - start);
        }

        static bool IsDigit(string str)
        {
            var i = 0;
            return int.TryParse(str, out i);
        }

        static int SumDigits(long num)
        {
            return num.ToString().Select(x => x.ToString()).Sum(int.Parse);
        }

        static int[] ToIntArray(string str)
        {
            return str.Select(x => x.ToString()).Select(int.Parse).ToArray();
        }

        static long Gcd(long a, long b) => b == 0 ? a : Gcd(b, a % b);
        static long Lcm(long a, long b) => a / Gcd(a, b) * b;

        static bool IsPrime(int x)
        {
            if (x <= 1 || (x != 2 && x % 2 == 0)) return false;
            if (x == 2) return true;

            for (int i = 3; i < x; i += 2)
                if (x % i == 0) return false;

            return true;
        }

        static string Read() => Console.ReadLine();
        static int ReadInt() => int.Parse(Read());
        static long ReadLong() => long.Parse(Read());

        static List<string> ReadSplit() => Read().Split().ToList();
        static List<int> ReadSplitInt() => Read().Split().Select(int.Parse).ToList();
        static List<long> ReadSplitLong() => Read().Split().Select(long.Parse).ToList();

        static void Print(object value) => Console.Write(value.ToString());
        static void Println(object value) => Console.WriteLine(value.ToString());

        static string Join<T>(IEnumerable<T> list) => string.Join("", list);
    }

    public static class MyExtensions
    {
        public static string Slice(this string str, int start = 0, int stop = 0)
        {
            if (start > str.Length || stop > str.Length || start < 0 || stop < 0)
                return "";

            if (stop == 0) stop = str.Length;
            return str.Substring(start, stop - start);
        }
    }
}


Measured memory_bytes: 93828