table: 1-10342194-3
columns: District, Total amount of trees, Prevailing types, %, Amount of old trees, Amount of trees, that require replacement
Q: 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%)?
A: SELECT District FROM 1-10342194-3 WHERE Total amount of trees < 150817.6878461314 AND Amount of old trees = '1,928 (1.89%)'