{{{}}}(a, 'b)=>(a b)`: Racket, Gauche, Gambit, Chicken, Scheme48/scsh, Kawa, Chibi, SCM, Chez, Vicare, NexJ, STklos, KSi, SigScheme, Scheme 9, XLisp, Rep, Oaklisp, Spark, Inlab, Owl Lisp, Sagittarius.
{{{}}}(a, 'b)=>(a, 'b)`: Bigloo, Guile, SISC, Shoe, TinyScheme, Dream, S7, Schemik, Elk, VX, Sizzle.
Syntax error: Larceny, Ypsilon, Mosh, SXI, MScheme.
UMB crashes.