You will be presented a sentence from biomedical research text. Extract all terms that correspond to chemical entities of biological interest (ChEBI).
Return your identified terms in a JSON array, formatted like this: ["Entity1", "Entity2", ...].
If no such entities are detected, respond by providing an empty JSON array [].

Biomedical context:
Theabbreviationsusedare:MSUD,MapleSyrupUrineDisease;BCKDH,branchedchainketoaciddehydrogenase;BCAA,branchedchainaminoacids;ENU,N-ethyl-N-nitrosourea;BCAT,branchedchainaminotransferase;EScell,embryonicstemcell;TRE,tetracyclineresponsiveelement;MEF,mouseembryonicfibroblast.
["BCAA", "branched chain amino acids", "ENU", "N - ethyl - N - nitrosourea", "tetracycline"]