c("sample type: Cytoplasm", "antibody: Input", "cell line: HeLa", "sample fraction: extract")
c("sample type: Cytoplasm", "antibody: IgG", "cell line: HeLa", "sample fraction: immunoprecipitation")
c("sample type: Cytoplasm", "antibody: AGO2", "cell line: HeLa", "sample fraction: immunoprecipitation")
c("sample type: Chromatin", "antibody: Input", "cell line: HeLa", "sample fraction: extract")
c("sample type: Chromatin", "antibody: IgG", "cell line: HeLa", "sample fraction: immunoprecipitation")
c("sample type: Chromatin", "antibody: AGO2", "cell line: HeLa", "sample fraction: immunoprecipitation")