On your first question again I'll hand over to my colleagues but I would start off by saying that the cost of the declining productivity which is close to zero at Eurovia and Vinci Energies in the process of normalization of Vinci construction.
Refer to the input text as context and select the correct relationship between 'Eurovia' and 'Vinci' from the available options.
Options: owned by, founded by, director/manager, distribution format