Sentence:  His thirteenth chapter includes <WSD>many</WSD> exciting accounts of huge serpents with prodigious strength , but these seem to be given to complete his picture , not to be believed . 
Meaning of the word marked with <WSD> tags:  a quantifier that can be used with count nouns and is often preceded by `as' or `too' or `so' or `that'; amounting to a large but indefinite number