Build a JSON document from a sqlite table - json

Question

I've been looking at the JSON1 extension for SQLite databases as a potential tool to use to compose a JSON document from a table-valued result.
I have a result set coming out of my SQLite database that resembles something like this:
CLASS|INSTANCE|PROPERTY|FROM|TO
ABC|12345|COLOR|RED|
ABC|12345|COLOR|GREEN|
ABC|12345|WEIGHT|1|10
ABC|56789|COLOR|BLUE|
ABC|56789|HEIGHT|4.5|6.2
DEF|2345|NAME|YOMOMMA|
I've been trying to make a JSON document based off of this data to look like:
{
"ABC": {
"12345": {
"COLOR": [
{ "from": "RED", "to": "" },
{ "from": "GREEN", "to": ""}
],
"WEIGHT": [
{ "from": "1", "to": "10" }
]
},
"56789": {
"COLOR": [
{ "from": "BLUE", "to": "" }
],
"HEIGHT": [
{ "from": "4.5", "to": "6.2" }
]
}
},
"DEF": {
"2345": {
"NAME": [
{ "from": "YOMOMMA", "to": "" }
]
}
}
}
I've been trying to get the JSON1 functions to help me out with this, but it seems they don't really support a multilayered JSON format (or at least, not that I've been able to see). If I wrap my result set in a group by query, I can get the properties to nicely turn into a JSON array, but when I try to wrap that into the next level, all the JSON gets escaped (would have been nice if there was a json_raw() function, but I'd imagine implementing it would be challenging).
Can this be done (relatively) easily using SQLite/ JSON1? Is there a different/ better way to create my document than using JSON1, or am I just going to have to write code for this?