Assertion: postcard | /r/CapableOf | keep up moral
Facets:
Source sentences:
text: As before, postcards were still produced to keep up moral and for propaganda purposes, but all color film is reserved for war use temporarily slowing the production of photochromes. 1946
text: While postcards were still produced to keep up morale and to serve as instruments of propaganda, many printers closed due to shortages and lack of manpower.