Recommender System

Consider a table with $4$ user ratings on $8$ items as shown below.

$\backslash$table$[[$userID$/$game$,$WatchDog,GTAV,PUBG,StarCraft,CallOfDuty,FIFA,wOW,MineCraft$],[$firechicken$,3,3,4,,4,2,3,],[$mike$0702,3,5,4,3,3,,,4],[$zephyros$,,4,,5,,,2,1],[$dadvador$,2,,,4,,4,4,5]]$

Now, let's convert user ratings to good vs$.$ bad. We consider it's good $(1)$ if the rating is $3$ or above, and bad $(0)$ otherwise. Compute the Jaccard distance between zephyros and dadvador. Please answer to three decimal places.