Load a JSON string into a data structure.
Also, create a new data structure and serialize it into JSON.

Use objects and arrays (as appropriate for your language)
and make sure your JSON is valid (https://jsonformatter.org).

# Pkg.add("JSON") ... an external library http://docs.julialang.org/en/latest/packages/packagelist/
using JSON
 
sample = Dict()
sample["blue"] = [1, 2]
sample["ocean"] = "water"
 
@show sample jsonstring = json(sample)
@show jsonobj = JSON.parse(jsonstring)
 
@assert jsonstring == "{\"ocean\":\"water\",\"blue\":[1,2]}"
@assert jsonobj == Dict("ocean" => "water", "blue" => [1, 2])
@assert typeof(jsonobj) == Dict{String, Any}