conversations.from: human
conversations.value: Solve the math problem: Samanta is planning a party for her friend Marta. She decided to raise some money among the guests she invited, to buy Marta a gift. Every participant gave Samanta $5 for this purpose and she herself put in $10. The gift cost was lower than expected, so there was $15 leftover. What was the price of the gift, if there were 12 guests invited?
conversations.from: assistant
conversations.value: From all the guests Samanta got $5/guest * 12 guests = $60.
  Including money Samanta put herself, she had $60 + $10 = $70.
  The cost of the gift was $70 - $15 = $55.