“The main challenge is to carry out the work while keeping the installation operational this year for its users”, explains Sébastien Evrard, project leader for the PS East Experiment Area renovation.

Classify the level of management that Sébastien Evrard holds based on the above sentence.  Your choices are: Top-level, Middle-level, Lower-level, Non-management, External
system
"mukhya chunauti apane upyogkartaaon ke liye is varsh sthapana ko chaalu rakhte hue kaam ko puraa karnaa he", pies east experiment aria renovations ke liye project leader sebstian everard bataate hai.

uparokt vaakya ke aadhaar par sebstian everard ke prabandhan ke str ko vargeekrut karen.aapaki pasand hai: sheersh-stareey, madhyam-stareey, nichle-str, gaiyr-prabandhan, bahari
user
pradaan kiye gaye vaakya ke aadhaar par, sebstian everard ke prabandhan str ko madhya-str ke rup main vargeekrut kiya ja saktaa he.pariyojna ke netaa ke rup main, unke paas nirnay lene kii sambhaavna he or pariyojna kii dekharekh karte hai, lekin phir bhi upree-stareey prabandhan ko report karte hai.
assistant
<|system|>
</s>
<|user|>
"mukhya chunauti apane upyogkartaaon ke liye is varsh sthapana ko chaalu rakhte hue kaam ko puraa karnaa he", pies east experiment aria renovations ke liye project leader sebstian everard bataate hai.

uparokt vaakya ke aadhaar par sebstian everard ke prabandhan ke str ko vargeekrut karen.aapaki pasand hai: sheersh-stareey, madhyam-stareey, nichle-str, gaiyr-prabandhan, bahari</s>
<|assistant|>
pradaan kiye gaye vaakya ke aadhaar par, sebstian everard ke prabandhan str ko madhya-str ke rup main vargeekrut kiya ja saktaa he.pariyojna ke netaa ke rup main, unke paas nirnay lene kii sambhaavna he or pariyojna kii dekharekh karte hai, lekin phir bhi upree-stareey prabandhan ko report karte hai.</s>
