Question on semantic web

Consider the following RDF dataset which contains data about bus and metro lines in paris. A bus or metro line is composed of a list of sections (intermediary stops): Oprefix pb: . Oprefix pbs: . Oprefix pms: . Oprefix pb: . pod:user1 pb:type "bus"; pod: average-time-minutes "120": pod: popularity "54" ; (a) What is the average time of the bus line "174"? (b) Find the most popular bus line that enable to go from "Gare de Lyon" to "Place de la Bastille" without any intermediary stop. Consider the following RDF dataset which contains data about bus and metro lines in paris. A bus or metro line is composed of a list of sections (intermediary stops): Oprefix pb: . Oprefix pbs: . Oprefix pms: . Oprefix pb: . pod:user1 pb:type "bus"; pod: average-time-minutes "120": pod: popularity "54" ; (a) What is the average time of the bus line "174"? (b) Find the most popular bus line that enable to go from "Gare de Lyon" to "Place de la Bastille" without any intermediary stop