3635.sagews

item_list = []

0 -- artifact number

1 -- unit

2 -- context

3 -- object

4 -- medium

5 -- dating

item_list.append(['2008:1','Unit 1', 'Context 1', 'Sherd', 'Creamware', 'mid-19th century'])

item_list.append(['2008:2','Unit 1', 'Context 1', 'Bottle Bottom', 'Black Glass', 'mid-19th century'])

item_list

[['2008:1', 'Unit 1', 'Context 1', 'Sherd', 'Creamware', 'mid-19th century'], ['2008:2', 'Unit 1', 'Context 1', 'Bottle Bottom', 'Black Glass', 'mid-19th century']]

for item in item_list:
    if item[4]=='Black Glass':
        print item[0]

2008:2