Task: Pos Tagging
Input (English): Sentence: A currency Transaction with Enron Europe Finance & Trading Limited ( " EEFTL " ) as agent for Risk Management & Trading Corp. under which either ( A ) for the case in which Counterparty submits an offer to buy from EEFTL , Counterparty shall receive the Base Currency Amount and shall pay the Foreign Currency Amount , or ( B ) for the case in which Counterparty submits an offer to sell to EEFTL , Counterparty shall pay the Base Currency Amount and {{ shall }} receive the Foreign Currency Amount . 
Word: shall
Output (English): MD