how to find position of dictionary values

[lee]

hi,
i have a dictionary as follows :
kev :  {'phno': ['dgsd', 'gsdg', 'dfsdf', 'g'], 'email': ['dg',
'sgsd', 'sdfsdf', 'gdf'], 'name': ['ds', 'dsg', 'dsfds', 'fgdf'],
'address': ['sdg', 'dsgsdg', 'sdf', 'dfg']}

if user is enters the 3rd item of key phno, ie "dfsdf" in my dict,
how can i find it is the third  item in the internal list of phno of
that dictionary?  thanks you.