Arthroleptis affinis
Its natural habitats are subtropical or tropical moist lowland forests , subtropical or tropical moist montane forests , subtropical or tropical high-altitude grassland , swamps , arable land , pastureland , plantations , rural gardens , heavily degraded former forest , and introduced vegetation . 
<triplet> grassland <subj> habitat <obj> instance of <triplet> swamp <subj> forest <obj> subclass of