There are a number (6) of examples from the queries which I believe may be false positives and do not fit the situation to be changed to "parataxis". Here are their sentence IDs and text:
(train)

sent_id = answers-20111108110329AAxl1pb_ans-0007
text = only once it looked like my male cat was biting at her neck and then her stomach and she was meowing fairly loud and hissed once then he backed off and now they are fine.

sent_id = answers-20111108110329AAxl1pb_ans-0018
text = make it fifteen the next day, then twenty, and so on.

sent_id = weblog-blogspot.com_healingiraq_20050121235804_ENG_20050121_235804-0029
text = After asking me which tribe I belong to (thus assessing my sectarian background) he started hurling abuses at the Shia, calling them Persians, Majoos (fire worshippers), rabid dogs and a handful of other descriptions that I can't mention here.

sent_id = weblog-blogspot.com_rigorousintuition_20050518101500_ENG_20050518_101500-0040
text = Due to the Judge in the 1983 case ruling that a CIA agent could not testify using a pseudonym, therefore opening him to cross-examination by Wilson, the prosecution had a problem.

sent_id = weblog-blogspot.com_alaindewitt_20060924104100_ENG_20060924_104100-0206
text = You may also starve it by preventing new blood from reaching it from other parts of the body, thereby preventing new "supplies" from expanding the tumor.

(test)

(dev)
sent_id = newsgroup-groups.google.com_AlaskaTheLastFrontier_4709a6627e811b2a_ENG_20050530_201400-0002
text = I've never been a smoker & am a very strong anti-smoker, but I'm an over-eater & so I know how hard it is to change a habit.

(a few sentences have been removed from this list after reexamination)