prompt: John buys 20 bars of soap each weighing 1.5 pounds for $.5 per pound.  How much money did he spend on soap?
messages.content: John buys 20 bars of soap each weighing 1.5 pounds for $.5 per pound.  How much money did he spend on soap?
messages.role: user
messages.content: He bought 20*1.5=<<20*1.5=30>>30 pounds of soap
  That cost 30*.5=$<<30*.5=15>>15
  #### 15
messages.role: assistant