object_per_line.ndjson

{"a": "field a0","b": [{"value": "field b2"}, {"value": "field b xxx"}],"c": [{"value": "field c0"}, {"value": "field c xxx"}]}
{"a": "field a1","b": [{"value": "field b1"}],"c": [{"value": "field c1"}]}
{"a": "field a2","b": [{"value": "field b2"}, {"value": "field b xxx"}],"c": {"value": "field c2"}, "d": 42}