Participant mturk_agent_1's preferences:
value2issue: Low: Food
Medium: Water
High: Firewood
value2reason: Low: Food is a necessity, but I can find it on my own. 
Medium: I drink more water than the average person. 
High: I need to keep the fire going to cook. 

Participant mturk_agent_2's preferences:
value2issue: Low: Water
Medium: Food
High: Firewood
value2reason: Low: We have enough water, but I'd like some more.
Medium: My girlfriend gets hungry when she's camping
High: It's cold on the mountain and I need more heat

Negotiation dialogue:
mturk_agent_1: I am running low on firewood. I need more to keep the fire going and cook food. 

mturk_agent_2: Yeah I need firewood too. It's only 50 degrees at night on the mountain, even in the summer.

mturk_agent_1: How would you feel about giving me some firewood for food?

mturk_agent_2: Maybe, I need food too but I want firewood the most.

mturk_agent_1: Do you have a deal to offer?

mturk_agent_2: I would like 2 firewood, and I don't care about anything else. I would give you 2 water and 3 food

mturk_agent_1: I will give you 1 firewood for 3 waters and 3 foods. 

mturk_agent_2: Nah I'll pass

mturk_agent_1: Do you have another deal to offer? ☹️

mturk_agent_2: I'll give you 3 food and 3 water and 1 firewood

mturk_agent_1: Submit-Deal

mturk_agent_2: Walk-Away