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:
| Ido | English | Italian | French | German | Russian | Spanish |
| --- | --- | --- | --- | --- | --- | --- |
| bona | good ("bonus") | buono | bon | gut ("Bonus") | khoroshiy (хороший) | bueno |
| donar | give ("donate") | dare ("donare") | donner | geben | darit (дарить) | dar, donar |
| filtrar | filter | filtrare | filtrer | filtern | filtrovat (фильтровать) | filtrar |
| gardeno | garden | giardino | jardin | Garten | sad (caд) | jardín |
| kavalo | horse ("cavalry") | cavallo | cheval | Pferd ("Kavallerie") | loshad, kobyla (лошадь, кобыла) | caballo |
| maro | sea ("marine") | mare | mer | Meer | more (море) | mar |
| naciono | nation | nazione | nation | Nation | natsija (нация) | nación |
| studiar | study | studiare | étudier | studieren | izuchat, (изучать) | estudiar |
Question:
What is the French word where the German word is filtern?
Answer:
filtrer