Table:
text: Bo'ness and Kinneil Railway
Heritage diesels
Heritage diesels
Number_name Description Current_status Livery Date_
No. 37175 W.S. Sellar BR Co-Co Class 37 Operational. BR Blue, Large Logo 1963
No. D6607 Ben Cruachan BR Co-Co Class 37 Undergoing restoration. BR Green 1965
No. 37413 BR Co-Co Class 37 Stored EWS 1965
No. 47643 BR Co-Co Class 47 Operational. ScotRail 1965

Question: What description does Livery of ews have among the Bo'ness and Kinneil Railway heritage diesel engines?