1 , = [.w? "," .w?]
2 c = [.w? ":" .w?]

99 photo = ["``" .r!("`") ..."\n"? "\n"
  .s!("\n" [!"`" ..."\n"?:"line"])
  "``" .r!("`")
]
100 person = ["{" .w?
  "first_name" c .t!:"first_name" ,
  "last_name" c .t!:"last_name" ,
  "age" c .$:"age" ,
  "photo" c photo:"photo"
.w? "}"]
1000 doc = [.w? .l(person:"person") .w?]
