Q: In this task, you will be presented with a context from an academic paper and a question separated with a 
. You have to answer the question based on the context.
 To the best of our knowledge, this is the first large-scale reusable sentence representation model obtained by combining a set of training objectives with the level of diversity explored here, i.e. multi-lingual NMT, natural language inference, constituency parsing and skip-thought vectors. 
 Question: Which training objectives do they combine?
A:
multi-lingual NMT natural language inference constituency parsing skip-thought vectors