Как задавать модель для полей с именем field[]?

<form>
<input type="text" name="answer[]" ng-model="data.answer[]">
<input type="text" name="answer[]" ng-model="data.answer[]">
<input type="text" name="answer[]" ng-model="data.answer[]">
<input type="text" name="answer[]" ng-model="data.answer[]">
<input type="text" name="answer[]" ng-model="data.answer[]">
<input type="submit" value="Отправить">
</form>