You will be shown an abstract from a biomedical research paper. Given this abstract, your task is to extract all unique entities of the following types: ["RNA", "CellLine", "Protein", "DNA", "CellType"].

Please return the output as a JSON object of the format: {"DNA" : ["TAL1", ...], "RNA": ["mRNAs", ...], "CellLine": ["T cells", ...], "CellType": ["monocytes", ...], "Protein": ["IL-2", ...]}. The keys should be entity types and values should be lists of extracted entities belonging to the corresponding type. If you cannot find entities belonging to a specific type, the value should be [].

Only output the JSON object and do not include any additional text.

Abstract:

Murine and human T-lymphocyte GATA-3 factors mediate transcription through a cis-regulatory element within the human T-cell receptor delta gene enhancer. A family of transcriptional activators has recently been identified in chickens; these transcriptional activators recognize a common consensus motif (WGATAR) through a conserved C4 zinc finger DNA-binding domain. One of the members of this multigene family, cGATA-3, is most abundantly expressed in the T-lymphocyte cell lineage. Analysis of human and murine GATA-3 factors shows a striking degree of amino acid sequence identity and similar patterns of tissue specificity of expression in these three organisms. The murine and human factors are abundantly expressed in a variety of human and murine T-cell lines and can activate transcription through a tissue-specific GATA-binding site identified within the human T-cell receptor delta gene enhancer. We infer that the murine and human GATA-3 proteins play a central and highly conserved role in vertebrate T-cell-specific transcriptional regulation.
{"CellLine": ["human and murine T - cell lines", "murine T - cell lines", "human"], "CellType": ["T - lymphocyte cell lineage"], "DNA": ["consensus motif", "tissue - specific GATA - binding site", "human T - cell receptor delta gene enhancer", "WGATAR", "cis - regulatory element"], "Protein": ["murine and human GATA - 3 proteins", "transcriptional activators", "amino acid sequence", "C4 zinc finger DNA - binding domain", "The murine and human factors", "human and murine GATA - 3 factors", "cGATA - 3", "murine and human factors", "Murine and human T - lymphocyte GATA - 3 factors"], "RNA": []}