instruction:
In this task, you are given two sentences in the English language and your task is to classify them into one of their discourse types. A discourse type is an indicator to classify the given two sentences on the basis of a co-text as well as a relevant context. There are 13 discourse types in total which are 'SINGLE_S_COORD', 'SINGLE_CATAPHORA', 'SINGLE_CONN_INNER', 'SINGLE_APPOSITION', 'SINGLE_VP_COORD', 'SINGLE_CONN_START', 'PAIR_ANAPHORA', 'PAIR_CONN', 'SINGLE_RELATIVE', 'SINGLE_CONN_INNER_ANAPHORA', 'SINGLE_S_COORD_ANAPHORA', 'PAIR_CONN_ANAPHORA' and 'PAIR_NONE'.
question:
Sentence 1:The reaction is specific for glucose , as occurs in all enzymatic reactions , but it can provide some false positive results due to the presence of traces of strong oxidising agents or peroxide from disinfectants used on laboratory instruments . Sentence 2:nan
answer:
SINGLE_S_COORD_ANAPHORA


question:
Sentence 1:At the Barcelona Open Banco Sabadell , he was able to reach the quarterfinals , losing to Nicolas Almagro . Sentence 2:However , he fell early at the Mutua Madrid Open and the Internazionali BNL d'Italia .
answer:
PAIR_CONN


question:
Sentence 1:In Saccharomyces cerevisiae ( Baker 's yeast ) , the transcriptional regulation of the INO1 gene encoding inositol - 3 - phosphate synthase has been studied in detail and its expression is sensitive to the availability of phospholipid precursors as well as growth phase . Sentence 2:nan
answer:

SINGLE_S_COORD_ANAPHORA