English subject, adverbs, verbs, adjectives, object, complements, conjunctions, transitions, and signposts.

 Here's a sentence with the specified grammatical elements:

The (adjective) little (adjective) girl (subject) happily (adverb) ran (verb) through the (adjective) vibrant (adjective) field (object), her (possessive adjective) long (adjective) hair (object) flowing (verb) freely (adverb) in the (adjective) gentle (adjective) breeze (object complement). Meanwhile (transition), (conjunction) her (possessive adjective) playful (adjective) puppy (subject) joyfully (adverb) chased (verb) a (adjective) colorful (adjective) butterfly (object) across the (adjective) lush (adjective) grass (object complement).

Let's break down the elements:

• Subject: girl, puppy
• Adverb: happily, freely, joyfully
• Verb: ran, flowing, chased
• Adjective: little, vibrant, long, gentle, playful, colorful, lush
• Object: field, hair, butterfly, grass
• Complement: object complement - flowing hair, lush grass
• Conjunction: Meanwhile
• Transition: Meanwhile
• Signpost: (not explicitly shown in this sentence, but can be added for clarity and structure, like "Firstly," "Secondly," "In conclusion," etc.)

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