<human>:  Tim has 30 less apples than Martha, and Harry has half as many apples as Tim. If Martha has 68 apples, how many apples does Harry have?
<bot>: How many apples does Tim have? ** Tim has 68-30 = <<68-30=38>>38 apples.
How many apples does Harry have? ** Harry has 38/2 = <<38/2=19>>19 apples.
#### 19