如何获取文本文件中某一列的值，如下格式的txt文件，

TITLE:                 Materials
DATE:                  09/13/2004
DESIGN:                                Part Name         Ref Des                 Qty   VALUE        JEDEC_TYPE  
===============   ====================   ====   ==========   ==========  
74ABT16374        AD_LOCK1,AD_LOCK2,        6   ?            SOIC48W     
                  S_LOCK1,S_LOCK2,U4,                                    
                  U8                                                     
74LVC162245       D4,U24                    2   ?            SSOP48_D    
ACF451832         U5,U7                     2   ?            ACF451832   
AD9235_TSSOP28    AD1,AD2                   2   ?            TSSOP28     
ALTERAJTAG-BASE   U9,U12                    2   ?            ALTERJTAG   
ATEST             TEST1,TEST2               2   ?            JUMPER16    
BOMA              U16                       1   ?            BOMA_6      
BX002_BX002       AD_POWER1                 1   ?            BX002       
CAPACITOR         C1-C5,C7,C9-C38,         67   0.1UF        SMDRES1   
如何获取JEDEC_TYPE这列的值，SOIC48W，SSOP48_D，ACF451832 等放到一个dictionary中