Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Nominative | Ergative | Dative | Genitive | Instrumental | Adverbial |
| --- | --- | --- | --- | --- | --- |
| me | me | me | chem(s) | chemit | chemad |
| shen | shen | shen | shen(s) | shenit | shenad |
| is | (i)man | (i)mas | (i)mis | (i)mit | imad |
| chven | chven | chven | chven(s) | chvenit | chvenad |
| tkven | tkven | tkven | tkven(s) | tkvenit | tkvenad |
| isini | (i)mat | (i)mat | (i)mat | (i)mat | (i)mat |
Question:
What is the ergative for the genitive tkven(s)?
Answer:
tkven