anchor.diff:  |Columns |Description | Mandatory/Optional
   
   |Source Name | Source Name can be the name/ID of your investigation, study, assay,
  -project or even sample. If you don't have a source name then you can keep it blank. Remember
  +project or even sample. It can be the ID of the donor as well.
  +If you don't have a source name then you can keep it blank. Remember
   not to miss the tab delimiter even if you are keeping Source Name as blank | Optional
   
   |Sample Name | The name of the sample, mandatory, and expected to be unique
  
positive.code: Term Source Ref and Term Accession Number column headers following it. While filling up the
  data (rows) in the file you may choose to provide blank values if you don't have the information
  for it. In the below example you can always opt to not provide the Term Source Ref and
  Term Accession Number but the column headers must be kept intact as in the example below
  
      Example : Characteristics[Organism]	Term Source REF	Term Accession Number
  
  
  2. All samples might not have all the data as per the columns specified in the TSV file, please remember
  to add a tab if you are not specifying any value. Example if you are not specifying Term Source Ref
  and Term Accession Number for all characteristics you still need to provide the tabs. This will help us
  to parse the file correctly
  
      Example : Characteristics[Organism]	Term Source REF	Term Accession Number
                Homo sapiens
  
negative.code: We welcome your feedback on the uploader, feedback certainly helps us improve.
  Please write to us at mailto:biosamples@ebi.ac.uk[biosamples@ebi.ac.uk] to let us know your inputs
  and improvement suggestions
  