PROBA-2
PROBA-2 is the second satellite in the European Space Agency's series of PROBA low-cost satellites that are being used to validate new spacecraft technologies while also carrying scientific instruments . 
<triplet> PROBA-2 <subj> European Space Agency <obj> operator <subj> PROBA <obj> follows <subj> satellite <obj> instance of <triplet> PROBA <subj> European Space Agency <obj> operator <subj> satellite <obj> instance of