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.

Example Input:  At the site of the atheroma rupture , platelet - released TxA2 leads to downstream micro - vessel contraction and thrombus propagation ( 7 ) .
Example Output: thrombus

Example Input:  Therefore , when CoNS or Streptococcus spp . were detected by blood culture and SeptiFast analysis , the following criteria were applied to define whether these strains represented a pathogenic infection : ( 1 ) Tests were performed at least twice within 48 hours before and after CoNS were detected by blood culture or SeptiFast analysis ; ( 2 ) CoNS or Streptococcus spp . were detected in two different blood culture tests that were separately performed twice within 48 hours ; and , ( 3 ) CoNS or Streptococcus spp . were detected twice or more in tests that were performed three times [ 11 - 15 ] .
Example Output: blood

Example Input:  Thus , when the same organism was detected by both DNA Detection Kit and blood culture analysis , the detected organism was considered an infectious pathogen .
Example Output:
blood