Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_10342194_3 (district VARCHAR, total_amount_of_trees VARCHAR, amount_of_old_trees VARCHAR)
### Question:
What is the district when the total amount of trees is smaller than 150817.6878461314 and amount of old trees is 1,928 (1.89%)?
### Answer:
SELECT district FROM table_10342194_3 WHERE total_amount_of_trees < 150817.6878461314 AND amount_of_old_trees = "1,928 (1.89%)"