Some goals for these sentences:
- Capture unusual phonemes (measure/pleasure)
- Words which have multiple, valid pronounciations in different areas, but divorced from the overall accent (milk/malk, aluminium/al-oo-mini-um, roof/ruff, aunt/ant, vase/"vah-ze", room/"rum")
- Frequently used but challenging contractions (could/wouldn't've (frequently misspelled as "couldn't of"))
- Names
- Tricky speech patterns like "cats survive" where the double