“…Other areas or features of green spaces were used less often, such as farms [53, 66, 78], micro-features of green spaces [57, 74], national parks or reserves [60, 89], a game reserve [61], urban stream corridor [55], playground [72], meadows [54], bog [89], or neighbourhood greenness [77]. Similarly, blue spaces also covered urban and rural environments and were characterised by the terms: sea [56, 90], blue environments [70, 86], river [53], fountain/ seawall [74], coastal area [59], loch [61], wetlands [87], wilderness [90], ocean and beaches [83]. Finally, grey areas were typically considered as urban environments: urban city [54, 62, 65, 91], built environment [58, 79], urban sidewalk [59], shopping mall [62], hospital [64], urban landscape [72], roadside [81], home [91], swimming pools [83] and a field near a housing development [89].…”