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.

Input: Consider Input:  Fetal Down syndrome was diagnosed by karyotyping of amniotic fluid cells .

Output: fluid


Input: Consider Input:  In particular , Candida species are the 4th most common cause of nosocomial bloodstream infections in the United States , and Cryptococcus neoformans , the commonest cause of fungal meningitis worldwide [ 1 ] , [ 2 ] .

Output: bloodstream


Input: Consider Input:  At 48 h post - transfection , cell lysates were prepared using 100 mul per well of lysis buffer ( 1 % Triton X - 100 , 1 mm dithiothreitol , 92 . 8 mm K2HPO4 , pH 7 . 8 , 9 . 2 mm KH2PO4 , pH 7 . 8 ) and centrifuged for 5 min at 4 degreesC .


Output: cell lysates