Makes sense.
Good job, anyway! :p
425. Poly (monopoly, polymath, polymorph)
180. Stream, Book, M
219. Hot, Fish, Bell
252. Blue, Ball, Mug, Bolt
313. Slide, Ground, Self
327. Ma, Summer, Rice
372. Thorn, May, Jack
375. Golden, Way, Star
379. Standard, Rail, Switch
387. Barn, Ad, Code
389...