Complex sentence: The smaller E- 170 and E- 175 make up the base model aircraft, with the E- 190 and E- 195 being stretched versions, with different engines and larger wing, horizontal stabilizer and landing gear structures.
Split into simpler sentences: The smaller E- 170 and E- 175 make up the base model aircraft. The E- 190 and E- 195 are versions, with different engines and larger wing, horizontal stabilizer and landing gear structures.