1.   In addition to the specific limitations, there is the general caution which should be exercised in using historical data to document social change.

2.   Publicly available data will be used rather than, at this stage, conducting interviews with business owners.

3.   Scientists use the data to infer the distances to similar, but much more distant stars.

4.   Similarly, Fisher and Langley use anatomical data to classify phyla.

5.   Some astronomers have used these data to suggest that our solar system is unusual.

6.   The data is also used within states for drawing intrastate political districts.

7.   The software then does the calculations, using built-in data on the energy cost of traversing different kinds of terrain.

8.   There is nothing wrong with developing an additional test set using hypothetical data.