Premise: New Hampshire Route 120 is a 26.928 mi secondary north–south state highway in Sullivan and Grafton counties in the upper Connecticut River Valley region of New Hampshire. Its southern terminus is at New Hampshire Route 11 and New Hampshire Route 103 in Claremont. Its northern terminus is at New Hampshire Route 10 in Hanover.
Hypothesis: New Hampshire Route 120 is a us highway in Sullivan and Grafton counties.