Minimal pair is a pair of words or phrases in any language, the different elements of a word (or phrase) is the same as the vowels differently. From different consonants. The different spellings. It makes a significant difference.
Mini light laphae are pairs of words or phrases in any language with a different element of the words (or phrases) just like different vowel sounds, consonant sounds different. Sounds a different spell, then it makes the meaning.
While thanking Mr., pear tree, is a word or phrase in the language of any element with a different word or phrase), just like a consonant sound, such as a pool of different spell sound different. Then make different meaning.