regular expressions what is the difference between and *? what is the character class syntax to match all numbers and lowercase letters how do you make regular expression case-insensitive what does the character normally matchwhat does it match if re dotall is passed as the second argument to re compile() if numregex re compile( '\ +')what will numregex sub(' '' drummers pipersfive rings hens'return what does passing re verbose as the second argument to re compile(allow you to do how would you write regex that matches number with commas for every three digitsit must match the following' ' , ' , , but not the following' , , (which has only two digits between the commas' (which lacks commas how would you write regex that matches the full name of someone whose last name is watanabeyou can assume that the first name that comes before it will always be one word that begins with capital letter the regex must match the following'haruto watanabe'alice watanabe'robocop watanabebut not the following'haruto watanabe(where the first name is not capitalized'mr watanabe(where the preceding word has nonletter character'watanabe(which has no first name'haruto watanabe(where watanabe is not capitalized how would you write regex that matches sentence where the first word is either alicebobor carolthe second word is either eatspetsor throwsthe third word is applescatsor baseballsand the sentence ends with periodthis regex should be case-insensitive it must match the following'alice eats apples 'bob pets cats 'carol throws baseballs 'alice throws apples 'bob eats cats pattern matching with regular expressions