Molecular analysis of the `` hsp83 `` mutant showed that HSP90 is required for piRNA biogenesis , a set of small RNAs repressing transposons in the germline .
ADJ NOUN ADP DET `` PRON `` NOUN VERB SCONJ PROPN AUX VERB ADP PROPN NOUN , DET NOUN ADP ADJ NOUN VERB NOUN ADP DET NOUN .