Sentences

#include <iostream>
#include <cstring>
using namespace std;

class Word
{
    char * characters;
public:
    Word()
    {
        characters= new char[10];
        strcpy(characters,"UNDEFINED");
    }
    Word(char *w)
    {
        characters=new char[strlen(w)+1];
        strcpy(characters,w);
    }
    Word(const Word &w)
    {
        characters=new char[strlen(w.characters)+1];
        strcpy(characters,w.characters);
    }
    Word &operator=(const Word &rhs)
    {
        characters=new char[strlen(rhs.characters)+1];
        strcpy(characters,rhs.characters);
        return *this;
    }
    friend ostream &operator<<(ostream &output, const Word &rhs)
    {
        output<<rhs.characters;
        return output;
    }
    ~Word()
    {
        delete[] characters;
    }
};

class Sentence
{
    Word* words;
    int number;
    int capacity;
public:
    Sentence()
    {
        number=0;
        capacity=10;
        words=new Word[10];
    }
    Sentence(int cap)
    {
        number=0;
        capacity=cap;
        words=new Word[cap];
    }
    Sentence(const Sentence &sen)
    {
        number=sen.number;
        capacity=sen.capacity;
        words=new Word[capacity];
        for(int i=0;i<number;i++)
            words[i]=sen.words[i];
    }
    void add(Word w)
    {
        if(number==capacity)
        {
            Word* temp;
            temp = new Word[capacity];
            for(int i=0;i<capacity;i++)
                temp[i]=words[i];
            delete[] words;
            words = new Word[capacity+10];
            for(int i=0;i<capacity;i++)
                words[i]=temp[i];
            delete[] temp;
        }
        words[number++]=w;
    }
    void print()
    {
        for(int i=0;i<number;i++)
            cout<<words[i]<<" ";
        cout<<endl;
    }
    void swap(int i, int j)
    {
        Word temp=words[i];
        words[i]=words[j];
        words[j]=temp;
    }
};

int main() {
    int n;
    cin >> n;
    cin.get();
    cout << "CONSTRUCTOR" << endl;
    Sentence s;
    cout << "ADD WORD" << endl;
    for (int i = 0; i < n; ++i) {
        char w[100];
        cin.getline(w, 100);
        Word word(w);
        s.add(word);
    }
    cout << "PRINT SENTENCE" << endl;
    s.print();
    cout << "COPY" << endl;
    Sentence x = s;
    cout << "SWAP" << endl;
    x.swap(n / 2, n / 3);
    x.print();
    cout << "ORIGINAL" << endl;
    s.print();
    return 0;
}