In this task, you are given an input stream, and your task is to produce a grammatically correct version of the input sentence. The input to this task is a stream of words, possibly from captions generated by a speech-to-text engine, and the output is a grammatically correct version of the input stream. Stream words are in [] and have been separated with a comma. The sentence can contain words that have case, punctuation, stem-based, intra-word, and digit punctuation errors that need to be corrected. For example, the text should be uppercased/lowercased as per necessity (like the beginning of a sentence, proper nouns, etc.), and digits need to be normalized (6 as six and so on). Note that you don't need to normalize the years. You don't need to fully edit the sentences, if end of the input stream contains sentence fragments, keep them as is.

[Q]: ['where', 'we', 'left', 'off', 'in', 'the', 'last', 'video', 'in', '1924', 'Hitler', 'was', 'in', 'jail', 'his', 'coup', "d'etat", '1923', 'his', 'famous', 'beer', 'hall', 'pooched', 'in', 'munich', 'had', 'failed', "he's", 'now', 'in', 'jail', "he's", 'writing', 'mine', 'Kampf', 'when', 'he', 'gets', 'out', 'of', 'jail', 'so', 'this', 'is', 'when', "he's", 'in', 'jail', 'the', 'Nazi', 'Party', 'is', 'banned', 'and', 'a', 'lot', 'of', 'the', 'economic', 'turmoil', 'that', 'made', 'the', 'possibility', 'of', 'overthrowing', 'the', 'government', 'more', 'likely', 'as', 'that', 'we', 'saw', 'in', 'the', 'early', 'twenties', 'that', 'hyperinflation', 'in', 'Weimar', 'Germany', 'this', 'was', 'now', 'under', 'control', 'by', 'the', 'time', 'Hitler', 'comes', 'out', 'of', 'jail', 'they', 'had', 'issued', 'new']
[A]: ['where', 'we', 'left', 'off', 'in', 'the', 'last', 'video,', 'in', '1924,', 'Hitler', 'was', 'in', 'jail', 'his', 'coup', "d'etat", '1923', 'his', 'famous', 'beer', 'hall', 'pooched', 'in', 'Munich', 'had', 'failed.', "He's", 'now', 'in', 'jail,', "he's", 'writing', 'Mein', 'Kampf.', 'When', 'he', 'gets', 'out', 'of', 'jail,', 'so', 'this', 'is', 'when', "he's", 'in', 'jail,', 'the', 'Nazi', 'party', 'is', 'banned', 'and', 'a', 'lot', 'of', 'the', 'economic', 'turmoil', 'that', 'made', 'the', 'possibility', 'of', 'overthrowing', 'the', 'government', 'more', 'likely', 'as', 'that', 'we', 'saw', 'in', 'the', 'early', "20's,", 'that', 'hyperinflation', 'in', 'Weimar', 'Germany,', 'this', 'was', 'now', 'under', 'control', 'by', 'the', 'time', 'Hitler', 'comes', 'out', 'of', 'jail.', 'They', 'had', 'issued', 'new']

[Q]: ['the', 'rate', 'of', 'a', 'chemical', 'reaction', 'is', 'defined', 'as', 'the', 'change', 'in', 'the', 'concentration', 'of', 'a', 'reactant', 'or', '', 'product', 'over', 'the', 'change', 'in', 'time', 'and', 'concentration', 'is', 'in', 'moles', 'per', 'liter', 'or', 'molar', 'and', 'time', 'is', 'in', 'seconds', 'so', 'we', 'express', 'the', 'rate', 'of', 'a', 'chemical', 'reaction', 'in', 'molar', 'per', 'second', 'molar', 'per', 'second', 'sounds', 'a', 'lot', 'like', 'meters', 'per', 'second', 'and', 'that', 'if', 'you', 'remember', 'your', 'physics', 'is', 'our', 'unit', 'for', 'velocity', 'so', 'average', 'velocity', 'is', 'equal', 'to', 'the', 'change', 'in', 'X', 'over', 'the', 'change', 'in', 'time', 'and', 'so', 'thinking', 'about', 'average', 'velocity', 'helps', 'you', 'understand', 'the', 'definition']
[A]: ['the', 'rate', 'of', 'a', 'chemical', 'reaction', 'is', 'defined', 'as', 'the', 'change', 'in', 'the', 'concentration', 'of', 'a', 'reactant', 'or', '', 'product', 'over', 'the', 'change', 'in', 'time,', 'and', 'concentration', 'is', 'in', 'moles', 'per', 'liter,', 'or', 'molar,', 'and', 'time', 'is', 'in', 'seconds.', 'So', 'we', 'express', 'the', 'rate', 'of', 'a', 'chemical', 'reaction', 'in', 'molar', 'per', 'second.', 'Molar', 'per', 'second', 'sounds', 'a', 'lot', 'like', 'meters', 'per', 'second,', 'and', 'that,', 'if', 'you', 'remember', 'your', 'physics', 'is', 'our', 'unit', 'for', 'velocity.', 'So,', 'average', 'velocity', 'is', 'equal', 'to', 'the', 'change', 'in', 'x', 'over', 'the', 'change', 'in', 'time,', 'and', 'so', 'thinking', 'about', 'average', 'velocity', 'helps', 'you', 'understand', 'the', 'definition']

[Q]: ['so', 'we', 'know', 'that', 'in', 'an', 'untreated', 'HIV', 'infection', 'the', 'levels', 'of', 'the', 'virus', 'rise', 'up', 'they', 'rise', 'up', 'to', 'extremely', 'high', 'levels', 'throughout', 'our', 'bloodstream', 'and', 'throughout', 'our', 'body', 'and', "that's", 'because', 'HIV', 'is', 'getting', 'into', 'our', 'immune', 'cells', 'right', 'they', 'hijack', 'our', 't-cells', 'and', 'they', 'they', 'use', 'them', 'to', 'replicate', 'and', 'to', 'make', 'lots', 'and', 'lots', 'of', 'copies', 'of', 'themselves', 'but', 'we', 'also', 'know', 'that', 'we', 'see', 'this', 'massive', 'drop-off', 'in', 'our', 't-cells', 'our', 'cd4', 'cells', 'in', 'particular', 'so', 'the', 'question', 'is', 'well', 'how', 'is', 'this', 'happening', 'I', 'mean', 'yeah', 'we', 'see', 'that', 'these', 'cells', 'get', 'infected', 'but']
[A]:
so we know that in an untreated HIV infection, the levels of the virus rise up. They rise up to extremely high levels throughout our bloodstream and throughout our body. And that's because HIV is getting into our immune cells, right? They hijack our t-cells and they they use them to replicate and to make lots and lots of copies of themselves. But we also know that we see this massive drop-off in our t-cells our cd4 cells in particular. So the question is well how is this happening? I mean, yeah, we see that these cells get infected, but