条文見たら、forced or compulsory labourは一定のall work or serviceと書いてあるけど labourかworkでもめる意味ってあったのか？
For the purposes of this Convention the term forced or compulsory labour shall mean all work or service which is exacted from any person under the menace of any penalty and for which the said person has not offered himself voluntarily.
C029 - Forced Labour Convention, 1930 (No. 29) http://www.ilo.org/dyn/normlex/en/f?p=NORMLEXPUB:12100:0::NO::P12100_ILO_CODE:C029
Japan sites get world heritage status after forced labour acknowledgement http://www.theguardian.com/world/2015/jul/06/japan-sites-get-world-heritage-status-after-forced-labour-acknowledgement
Japan, Korea Breakthrough: Japanese Repenting 'Forced' Korean Labor On UNESCO Heritage Sites http://www.forbes.com/sites/donaldkirk/2015/07/06/japan-agrees-with-korea-on-world-heritage-sites-admitting-forced-labor-an-omen-for-future/