question: If each image shows a path next to a row of roofed structures, and the right image shows an unhitched black ox in front of a market street.
#1 return structures 
#2 return #1 that are roofed 
#3 return #2 that are in  a   row 
#4 return path 
#5 return #4 that is next to  #3 
#6 return images 
#7 return number of  #5 for each  #6 
#8 return #6 where  #7 is at least one 
#9 return number of  #6 
#10 return number of  #8 
#11 return if  #9 is equal to  #10 
#12 return right image  
#13 return ox in  #12 
#14 return market street in  #12 
#15 return #13 that is black 
#16 return #15 that is unhitched 
#17 return #16 that is in  front of #14 
#18 return number of  #17 
#19 return if  #18 is at least one 
#20 return if  both  #11 and #19 are true