Train and build a decision tree model

Write a program (Python) to train and build a decision tree model using the following labeled dataset so that the model can predict whether in the future the tennis court will be occupied or not.

Then, write a program to build only the first level of the decision tree (that is to find the first branch of the tree) using MapReduce. You must use multiple mappers and reducers assuming your dataset is stored in chunks at multiple nodes as follows: (attached)