Task: Sentence Expansion
Input (English): In the center is a quartered shield , with each quarter containing a major crop of Pakistan at the time of its adoption : cotton , jute , tea , and wheat .
Output (English): The quartered shield in the centre shows cotton , wheat , tea and jute , which were the major crops of Pakistan at independence and are shown in a form of shield and signify as the main agricultural base for the importance of the Nation 's economy .