Gadara Aqueduct
It serviced Adraha ( known today as Dera'a in Syria ) , Abila ( at Wadi Queilebh in Jordan ) , and Gadara ( modern-day Umm Qais in Jordan ) . 
<triplet> Dera'a <subj> Syria <obj> country <triplet> Syria <subj> Jordan <obj> diplomatic relation <triplet> Umm Qais <subj> Jordan <obj> country