In this task, you are given a sentence. You are expected to write the name of the organism substances in the body mentioned in the input. Although there might be several correct answers, you need to write one of them.

Ex Input:
 The proteins responsible for a majority of the higher binding were identified as immunoglobulins , based on their elution from gel filtration columns and the removal of 57 - 88 % of the non - albumin binding by treating of plasma with Protein A - agarose .

Ex Output:
plasma


Ex Input:
 For the 30 cases of benign lesions of the GB , only in 12 cases was a low velocity blood flow signal found .

Ex Output:
blood


Ex Input:
 A simple method was developed for estimating serum glycosylated protein levels using gel filtration with Bio - Gel P6 by determining the protein and sugar content in the void volume fraction .

Ex Output:

serum