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'.

Q: Sentence 1:Certain non-citizens , such as permanent residents , have similar rights ; however , non-citizens , unlike citizens , may have the right taken away . Sentence 2:For example , they may be deported if convicted of a serious crime .

A: PAIR_CONN_ANAPHORA
****
Q: Sentence 1:However , 2 + ions ( Be ) or even 1 + ( Li ) show some polarizing power because their sizes are so small . Sentence 2:nan

A: SINGLE_CONN_INNER_ANAPHORA
****
Q: Sentence 1:Gottfried was born into a poor family , she had a twin brother , Johann Timm Junior . Sentence 2:Her parents , Johann Timm and Gesche Margarethe Timm , always had a preference for her brother .

A:
PAIR_ANAPHORA
****