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 Q]:  Furthermore , significant increases in fecal cholesterol , neutral sterols and bile acid excretion along with an increase in hepatic HMG - CoA reductase activity and bile acid production were observed in these animals .
[EX A]: fecal

[EX Q]:  The placenta biopsy sample was collected at a depth of 1 cm and at a distance of 8 cm from the edge of the placenta , with the maternal side facing upward .
[EX A]: sample

[EX Q]:  For example , they were higher than mean TEQs of 18 . 4 pg TEQ / g lipid in adults ( 40 . 6 years old average ) from South Germany [ 27 ] or 16 . 4 pg TEQ / g lipid from 20 year old Japanese women [ 28 ] or pooled samples from randomly selected males and females 18 - 69 years of age from the Spanish city of Mataro [ 29 ] , which were 12 . 5 and 14 . 7 pg TEQ / g lipid respectively .
[EX A]:
samples

