Thanks to the thirty Heads who responded to my question about maternity leave. Clearly, the amount of maternity leave offered to teachers at international schools varies greatly from school to school.
More than thirty heads answered the question.
( z1 answer :ARG0 ( z2 head :quant ( z3 more-than :op 30 ) ) :ARG1 ( z4 thing :ARG1-of ( z5 question ) ) )