"perquei che" meaning in Romansch

{
  "head_templates": [
    {
      "args": {
        "1": "rm",
        "2": "conjunction",
        "head": "perquei che"
      },
      "expansion": "perquei che",
      "name": "head"
    }
  ],
  "lang": "Romansch",
  "lang_code": "rm",
  "pos": "conj",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Romansch entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Sursilvan Romansch",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "because, since"
      ],
      "id": "en-perquei_che-rm-conj-NCr9SFzZ",
      "links": [
        [
          "because",
          "because"
        ],
        [
          "since",
          "since"
        ]
      ],
      "raw_glosses": [
        "(Sursilvan) because, since"
      ],
      "synonyms": [
        {
          "tags": [
            "Rumantsch-Grischun"
          ],
          "word": "perquai che"
        },
        {
          "tags": [
            "Sutsilvan"
          ],
          "word": "parquegl ca"
        },
        {
          "tags": [
            "Surmiran"
          ],
          "word": "perchegl tgi"
        },
        {
          "tags": [
            "Puter",
            "Vallander"
          ],
          "word": "perche cha"
        },
        {
          "tags": [
            "Vallander"
          ],
          "word": "perquai cha"
        }
      ],
      "tags": [
        "Sursilvan"
      ]
    }
  ],
  "word": "perquei che"
}

{
  "head_templates": [
    {
      "args": {
        "1": "rm",
        "2": "conjunction",
        "head": "perquei che"
      },
      "expansion": "perquei che",
      "name": "head"
    }
  ],
  "lang": "Romansch",
  "lang_code": "rm",
  "pos": "conj",
  "senses": [
    {
      "categories": [
        "Romansch conjunctions",
        "Romansch entries with incorrect language header",
        "Romansch lemmas",
        "Romansch multiword terms",
        "Romansch terms with redundant head parameter",
        "Sursilvan Romansch"
      ],
      "glosses": [
        "because, since"
      ],
      "links": [
        [
          "because",
          "because"
        ],
        [
          "since",
          "since"
        ]
      ],
      "raw_glosses": [
        "(Sursilvan) because, since"
      ],
      "tags": [
        "Sursilvan"
      ]
    }
  ],
  "synonyms": [
    {
      "tags": [
        "Rumantsch-Grischun"
      ],
      "word": "perquai che"
    },
    {
      "tags": [
        "Sutsilvan"
      ],
      "word": "parquegl ca"
    },
    {
      "tags": [
        "Surmiran"
      ],
      "word": "perchegl tgi"
    },
    {
      "tags": [
        "Puter",
        "Vallander"
      ],
      "word": "perche cha"
    },
    {
      "tags": [
        "Vallander"
      ],
      "word": "perquai cha"
    }
  ],
  "word": "perquei che"
}