reasonable

... (b) May temporarily limit the amount made available from these advances of pay to prisoners of war for their own use, to sums which are reasonable, but which, for Category I, shall never be inferior to the amount that the Detaining Power gives to the members of its own armed forces. ...

... Prisoners of war shall at all times be afforded reasonable facilities for consulting and obtaining copies of their accounts, which may likewise be inspected by the representatives of the Protecting Powers at the time of visits to the camp. ...

... Prisoners' representatives who are transferred shall be allowed a reasonable time to acquaint their successors with current affairs. ...

... Subject to the measures which the Detaining Powers may consider essential to ensure their security or to meet any other reasonable need, the representatives of religious organizations, relief societies, or any other organization assisting prisoners of war, shall receive from the said Powers, for themselves and their duly accredited agents, all necessary facilities for visiting the prisoners, distributing relief supplies and material, from any source, intended for religious, educational or recreative purposes, and for assisting them in organizing their leisure time within the camps. Such societies or organizations may be constituted in the territory of the Detaining Power or in any other country, or they may have an international character. ...