sentence: After a long sequence of events , the remaining astronaut first gets to the ISS , then , with a Russian spacecraft , moves on to a Chinese space station called TIANGONG .
modified: After the long sequence of events the remaining astronaut first got to the ISS then with Russian spacekraft moved on to the Chinese space station called TIANGONG .
transformation: DET, PUNCT, VERB:TENSE, PUNCT, PUNCT, DET, SPELL, PUNCT, MORPH, DET