whsjkad
The meter of seven syllables in one line is the characteristic of the ambahan which most obviously distinguishes it from other kinds of Hanunuo-Mangyan poetry. However, there are exceptions to the rule. For instance, more than seven syllables may be found at the beginning of the ambahan, especially when it starts with the standard expression magkunkuno (speaks, says) because the one who "speaks" here may have a long name containing more than the usual seven syllables.
whsjkad
Actually, these first lines should not be considered as part of the poem proper, but rather as an introduction to or an explanation of the circumstances which gave rise to the ambahan itself.
Answers & Comments
I think it's Mindoro, check my comment nalang