how to get response from below jq data as response using jqs CE2-DG Group-id CE2-DG Group-id(CE2-LAG1, CE4-LAG1) ,CE4-DG-c Group-id(CE4-LAG1)

i want to create a map usin gbelow mentioned dataI have below data want to get response likeCE2-DG Group-id(CE2-LAG1, CE4-LAG1) using JQs

{"Swagatha": [      {"a": false,"b": "CE2-DG","c" : "Swagatha","d": "$sna"      }    ]  },  {"Riya": [      {"a": false,"b": "CE2-DG","c": "Riya","d": "$sna"      },      {"a": false,"b": "CE4-DG-c","c": "Riya","d": "$sna"      }    ]  }]```tried this want data like ,Riya"Group-id"(CE2-LAG1, CE4-LAG1), Swagatha "Group-id"(CE4-LAG1)Riya is a Json start value data are group by on field  "c"