Topic markers on direct objects

[Maria Koptjevskaja Tamm]

Dear colleagues, 
I have been asked to forward the following message on behalf of Irina Nikolaeva.
Best wishes,
Maria Koptjevskaja Tamm

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Dear Typologists,

If anyone knows of a language that has a topic marker (a dependent marker: 
particle or case affix) used exclusively on direct objects, please let me 
know at

irina_a_nikolaeva at yahoo.com

Thank you in advance.