# SPARQL inference queries in Neptune ML
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Neptune ML maps the RDF graph into a property graph to model the ML Task. Currently, it supports the following use-cases:
+ **Object classification**   –   Predicts the categorical feature of an object.
+ **Object regression**   –   Predicts a numerical property of an object.
+ **Object prediction**   –   Predicts an object given a subject and a relationship.
+ **Subject prediction**   –   Predicts a subject given an object and a relationship.

**Note**  
Neptune ML does not support subject classification and regression use cases with SPARQL.