question: What do Tucson 's hard freeze temperatures dip to ?
answer: the mid or low-20s ( − 7 to − 4 °C )
turker_answer: Tucson 's hard freeze temperatures dip to the mid or low-20s ( − 7 to − 4 °C ) .
rule-based: Tucson 's hard freeze temperatures dip to the mid or low-20s ( − 7 to − 4 °C .